namespace work (part deux)

227 files changed, 1363 insertions, 776 deletions

diff --git a/muse2/ChangeLog b/muse2/ChangeLog
index b4ca02a7..bdc4cb57 100644
--- a/muse2/ChangeLog
+++ b/muse2/ChangeLog
@@ -1,3 +1,5 @@
+08.09.2011:
+        - Finished namespace MusEWidget. Added namespaces MusEUtil, MusEDialog. (Orcan)
 07.09.2011:
         - Introducing namespaces. So far, we have MusEApp, MusEGlobal, MusEConfig, and I just started
           MusEWidget. zynaddsubfx does not crash anymore. (Orcan)
diff --git a/muse2/muse/app.cpp b/muse2/muse/app.cpp
index db14aa05..e3741071 100644
--- a/muse2/muse/app.cpp
+++ b/muse2/muse/app.cpp
@@ -1581,7 +1581,7 @@ void MusE::loadProjectFile1(const QString& name, bool songTemplate, bool loadAll
             //  read *.med file
             //
             bool popenFlag;
-            FILE* f = fileOpen(this, fi.filePath(), QString(".med"), "r", popenFlag, true);
+            FILE* f = MusEWidget::fileOpen(this, fi.filePath(), QString(".med"), "r", popenFlag, true);
             if (f == 0) {
                   if (errno != ENOENT) {
                         QMessageBox::critical(this, QString("MusE"),
@@ -1752,7 +1752,7 @@ void MusE::setFollow()
 void MusE::loadProject()
       {
       bool loadAll;
-      QString fn = getOpenFileName(QString(""), MusEGlobal::med_file_pattern, this,
+      QString fn = MusEWidget::getOpenFileName(QString(""), MusEGlobal::med_file_pattern, this,
          tr("MusE: load project"), &loadAll);
       if (!fn.isEmpty()) {
             MusEGlobal::museProject = QFileInfo(fn).absolutePath();
@@ -1766,8 +1766,8 @@ void MusE::loadProject()
 
 void MusE::loadTemplate()
       {
-      QString fn = getOpenFileName(QString("templates"), MusEGlobal::med_file_pattern, this,
-                                   tr("MusE: load template"), 0, MFileDialog::GLOBAL_VIEW);
+      QString fn = MusEWidget::getOpenFileName(QString("templates"), MusEGlobal::med_file_pattern, this,
+                                               tr("MusE: load template"), 0, MusEWidget::MFileDialog::GLOBAL_VIEW);
       if (!fn.isEmpty()) {
             // MusEGlobal::museProject = QFileInfo(fn).absolutePath();
             
@@ -1819,7 +1819,7 @@ bool MusE::save(const QString& name, bool overwriteWarn)
             system(backupCommand.toLatin1().constData());
 
       bool popenFlag;
-      FILE* f = fileOpen(this, name, QString(".med"), "w", popenFlag, false, overwriteWarn);
+      FILE* f = MusEWidget::fileOpen(this, name, QString(".med"), "w", popenFlag, false, overwriteWarn);
       if (f == 0)
             return false;
       Xml xml(f);
@@ -2041,10 +2041,10 @@ void MusE::showTransport(bool flag)
 //    by audio strip, midi strip, and midi trackinfo.
 //---------------------------------------------------------
 
-RoutePopupMenu* MusE::getRoutingPopupMenu()
+MusEWidget::RoutePopupMenu* MusE::getRoutingPopupMenu()
 {
   if(!routingPopupMenu)
-    routingPopupMenu = new RoutePopupMenu(this);
+    routingPopupMenu = new MusEWidget::RoutePopupMenu(this);
   return routingPopupMenu;
 }
 
@@ -2057,7 +2057,7 @@ bool MusE::saveAs()
       QString name;
       if (MusEGlobal::museProject == MusEGlobal::museProjectInitPath ) {
         if (MusEConfig::config.useProjectSaveDialog) {
-            ProjectCreateImpl pci(MusEGlobal::muse);
+            MusEWidget::ProjectCreateImpl pci(MusEGlobal::muse);
             if (pci.exec() == QDialog::Rejected) {
               return false;
             }
@@ -2065,7 +2065,7 @@ bool MusE::saveAs()
             song->setSongInfo(pci.getSongInfo(), true);
             name = pci.getProjectPath();
           } else {
-            name = getSaveFileName(QString(""), MusEGlobal::med_file_save_pattern, this, tr("MusE: Save As"));
+            name = MusEWidget::getSaveFileName(QString(""), MusEGlobal::med_file_save_pattern, this, tr("MusE: Save As"));
             if (name.isEmpty())
               return false;
           }
@@ -2078,7 +2078,7 @@ bool MusE::saveAs()
         }
       }
       else {
-        name = getSaveFileName(QString(""), MusEGlobal::med_file_save_pattern, this, tr("MusE: Save As"));
+        name = MusEWidget::getSaveFileName(QString(""), MusEGlobal::med_file_save_pattern, this, tr("MusE: Save As"));
       }
       bool ok = false;
       if (!name.isEmpty()) {
@@ -2353,7 +2353,7 @@ void MusE::startWaveEditor(PartList* pl)
 //---------------------------------------------------------
 void MusE::startSongInfo(bool editable)
       {
-        SongInfoWidget info;
+        MusEWidget::SongInfoWidget info;
         info.viewCheckBox->setChecked(song->showSongInfoOnStartup());
         info.viewCheckBox->setEnabled(editable);
         info.songInfoText->setPlainText(song->getSongInfo());
@@ -2374,7 +2374,7 @@ void MusE::startSongInfo(bool editable)
 void MusE::showDidYouKnowDialog()
       {
       if ((bool)MusEConfig::config.showDidYouKnow == true) {
-            DidYouKnowWidget dyk;
+            MusEWidget::DidYouKnowWidget dyk;
             dyk.tipText->setText("To get started with MusE why don't you try some demo songs available at http://demos.muse-sequencer.org/");
             dyk.show();
             if( dyk.exec()) {
@@ -2914,7 +2914,7 @@ void MusE::changeConfig(bool writeFlag)
 void MusE::configMetronome()
       {
       if (!metronomeConfig)
-          metronomeConfig = new MetronomeConfig;
+          metronomeConfig = new MusEWidget::MetronomeConfig;
 
       if(metronomeConfig->isVisible()) {
           metronomeConfig->raise();
@@ -2932,7 +2932,7 @@ void MusE::configMetronome()
 void MusE::configShortCuts()
       {
       if (!shortcutConfig)
-            shortcutConfig = new ShortcutConfig(this);
+            shortcutConfig = new MusEWidget::ShortcutConfig(this);
       shortcutConfig->_config_changed = false;
       if (shortcutConfig->exec())
             changeConfig(true);
@@ -3621,7 +3621,7 @@ void MusE::execUserScript(int id)
 //---------------------------------------------------------
 void MusE::findUnusedWaveFiles()
 {
-    UnusedWaveFiles unused(MusEGlobal::muse);
+    MusEWidget::UnusedWaveFiles unused(MusEGlobal::muse);
     unused.exec();
 }
 
diff --git a/muse2/muse/app.h b/muse2/muse/app.h
index 9036de19..4b0d4195 100644
--- a/muse2/muse/app.h
+++ b/muse2/muse/app.h
@@ -45,6 +45,11 @@ class QProgressDialog;
 namespace MusEWidget {
 class BigTime;
 class EditToolBar;
+class GlobalSettingsConfig;
+class MetronomeConfig;
+class MidiSyncConfig;
+class RoutePopupMenu;
+class ShortcutConfig;
 class VisibleTracks;
 }
 
@@ -53,12 +58,9 @@ class PartList;
 class Transport;
 class Arranger;
 class Instrument;
-class RoutePopupMenu;
 class Track;
 class PrinterConfig;
-class MidiSyncConfig;
 class MRConfig;
-class MetronomeConfig;
 class AudioConf;
 class Xml;
 class AudioMixerApp;
@@ -67,7 +69,6 @@ class AudioRecord;
 class MidiFileConfig;
 class MidiFilterConfig;
 class MarkerView;
-class GlobalSettingsConfig;
 class MidiControllerEditDialog;
 class MidiInputTransformDialog;
 class MidiTransformerDialog;
@@ -76,7 +77,6 @@ class RhythmGen;
 class MidiTrack;
 class MidiInstrument;
 class MidiPort;
-class ShortcutConfig;
 class Appearance;
 class WaveTrack;
 class AudioOutput;
@@ -182,23 +182,23 @@ class MusE : public QMainWindow
       QMenu* select, *master, *midiEdit, *addTrack;
 
       // Special common menu for routes. Used (so far) by audio and midi strip, and midi trackinfo.
-      RoutePopupMenu* routingPopupMenu; 
+      MusEWidget::RoutePopupMenu* routingPopupMenu; 
 
       QMenu* follow;
       QMenu* midiInputPlugins;
 
       QWidget* midiPortConfig;
       QWidget* softSynthesizerConfig;
-      MidiSyncConfig* midiSyncConfig;
+      MusEWidget::MidiSyncConfig* midiSyncConfig;
       MRConfig* midiRemoteConfig;
       RhythmGen* midiRhythmGenerator;
-      MetronomeConfig* metronomeConfig;
+      MusEWidget::MetronomeConfig* metronomeConfig;
       AudioConf* audioConfig;
       MidiFileConfig* midiFileConfig;
-      GlobalSettingsConfig* globalSettingsConfig;
+      MusEWidget::GlobalSettingsConfig* globalSettingsConfig;
       MidiFilterConfig* midiFilterConfig;
       MidiInputTransformDialog* midiInputTransform;
-      ShortcutConfig* shortcutConfig;
+      MusEWidget::ShortcutConfig* shortcutConfig;
       Appearance* appearance;
       AudioMixerApp* mixer1;
       AudioMixerApp* mixer2;
@@ -385,7 +385,7 @@ class MusE : public QMainWindow
       bool importWaveToTrack(QString& name, unsigned tick=0, Track* track=NULL);
       void importPartToTrack(QString& filename, unsigned tick, Track* track);
       void showTransport(bool flag);
-      RoutePopupMenu* getRoutingPopupMenu();
+      MusEWidget::RoutePopupMenu* getRoutingPopupMenu();
       
 #ifdef HAVE_LASH
       void lash_idle_cb ();
diff --git a/muse2/muse/appearance.cpp b/muse2/muse/appearance.cpp
index 253df1f9..c26f9542 100644
--- a/muse2/muse/appearance.cpp
+++ b/muse2/muse/appearance.cpp
@@ -765,7 +765,7 @@ void Appearance::removeBackground()
 void Appearance::addBackground()
       {
       QString cur = getenv("HOME");
-      QString user_bgfile = getImageFileName(cur, MusEGlobal::image_file_pattern, this,
+      QString user_bgfile = MusEWidget::getImageFileName(cur, MusEGlobal::image_file_pattern, this,
                                              tr("MusE: load image"));
 
       bool image_exists = false;
diff --git a/muse2/muse/arranger/arranger.cpp b/muse2/muse/arranger/arranger.cpp
index d78ac502..6f5ba175 100644
--- a/muse2/muse/arranger/arranger.cpp
+++ b/muse2/muse/arranger/arranger.cpp
@@ -142,7 +142,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       label->setAlignment(Qt::AlignRight|Qt::AlignVCenter);
       label->setIndent(3);
       toolbar->addWidget(label);
-      cursorPos = new PosLabel(0);
+      cursorPos = new MusEWidget::PosLabel(0);
       cursorPos->setEnabled(false);
       cursorPos->setFixedHeight(22);
       toolbar->addWidget(cursorPos);
@@ -174,14 +174,14 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       // song length is limited to 10000 bars; the real song len is limited
       // by overflows in tick computations
       //
-      lenEntry = new SpinBox(1, 10000, 1);
+      lenEntry = new MusEWidget::SpinBox(1, 10000, 1);
       lenEntry->setValue(song->len());
       lenEntry->setToolTip(tr("song length - bars"));
       lenEntry->setWhatsThis(tr("song length - bars"));
       toolbar->addWidget(lenEntry);
       connect(lenEntry, SIGNAL(valueChanged(int)), SLOT(songlenChanged(int)));
 
-      typeBox = new LabelCombo(tr("Type"), 0);
+      typeBox = new MusEWidget::LabelCombo(tr("Type"), 0);
       typeBox->insertItem(0, tr("NO"));
       typeBox->insertItem(1, tr("GM"));
       typeBox->insertItem(2, tr("GS"));
@@ -199,7 +199,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       label->setIndent(3);
       toolbar->addWidget(label);
       
-      globalPitchSpinBox = new SpinBox(-127, 127, 1);
+      globalPitchSpinBox = new MusEWidget::SpinBox(-127, 127, 1);
       globalPitchSpinBox->setValue(song->globalPitchShift());
       globalPitchSpinBox->setToolTip(tr("midi pitch"));
       globalPitchSpinBox->setWhatsThis(tr("global midi pitch shift"));
@@ -211,7 +211,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       label->setIndent(3);
       toolbar->addWidget(label);
       
-      globalTempoSpinBox = new SpinBox(50, 200, 1, toolbar);
+      globalTempoSpinBox = new MusEWidget::SpinBox(50, 200, 1, toolbar);
       globalTempoSpinBox->setSuffix(QString("%"));
       globalTempoSpinBox->setValue(tempomap.globalTempo());
       globalTempoSpinBox->setToolTip(tr("midi tempo"));
@@ -237,8 +237,8 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       QVBoxLayout* box  = new QVBoxLayout(this);
       box->setContentsMargins(0, 0, 0, 0);
       box->setSpacing(0);
-      box->addWidget(hLine(this), Qt::AlignTop);
-      //QFrame* hline = hLine(this);
+      box->addWidget(MusEUtil::hLine(this), Qt::AlignTop);
+      //QFrame* hline = MusEUtil::hLine(this);
       //hline->setLineWidth(0);
       //box->addWidget(hline, Qt::AlignTop);
 
@@ -249,7 +249,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       int xscale = -100;
       int yscale = 1;
 
-      split  = new Splitter(Qt::Horizontal, this, "split");
+      split  = new MusEWidget::Splitter(Qt::Horizontal, this, "split");
       split->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
       box->addWidget(split, 1000);
       //split->setHandleWidth(10);
@@ -291,7 +291,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       ib->setFocusPolicy(Qt::NoFocus);
       connect(ib, SIGNAL(toggled(bool)), SLOT(showTrackInfo(bool)));
 
-      header = new Header(tracklist, "header");
+      header = new MusEWidget::Header(tracklist, "header");
       
       header->setFixedHeight(30);
 
@@ -353,7 +353,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       tgrid->wadd(1, infoScroll);
       tgrid->wadd(2, header);
       tgrid->wadd(3, list);
-      tgrid->wadd(4, hLine(tracklist));
+      tgrid->wadd(4, MusEUtil::hLine(tracklist));
       tgrid->wadd(5, ib);
 
       //---------------------------------------------------
@@ -361,7 +361,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       //---------------------------------------------------
 
       int offset = AL::sigmap.ticksMeasure(0);
-      hscroll = new ScrollScale(-1000, -10, xscale, song->len(), Qt::Horizontal, editor, -offset);
+      hscroll = new MusEWidget::ScrollScale(-1000, -10, xscale, song->len(), Qt::Horizontal, editor, -offset);
       hscroll->setFocusPolicy(Qt::NoFocus);
       ib->setFixedHeight(hscroll->sizeHint().height());
 
@@ -389,7 +389,7 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       egrid->setContentsMargins(0, 0, 0, 0);  
       egrid->setSpacing(0);  
 
-      time = new MTScale(&_raster, editor, xscale);
+      time = new MusEWidget::MTScale(&_raster, editor, xscale);
       time->setOrigin(-offset, 0);
       canvas = new PartCanvas(&_raster, editor, xscale, yscale);
       canvas->setBg(MusEConfig::config.partCanvasBg);
@@ -410,9 +410,9 @@ Arranger::Arranger(QMainWindow* parent, const char* name)
       connect(list, SIGNAL(redirectWheelEvent(QWheelEvent*)), canvas, SLOT(redirectedWheelEvent(QWheelEvent*)));
       
       //egrid->addMultiCellWidget(time,           0, 0, 0, 1);
-      //egrid->addMultiCellWidget(hLine(editor),  1, 1, 0, 1);
+      //egrid->addMultiCellWidget(MusEUtil::hLine(editor),  1, 1, 0, 1);
       egrid->addWidget(time, 0, 0, 1, 2);
-      egrid->addWidget(hLine(editor), 1, 0, 1, 2);
+      egrid->addWidget(MusEUtil::hLine(editor), 1, 0, 1, 2);
 
       egrid->addWidget(canvas,  2, 0);
       egrid->addWidget(vscroll, 2, 1);
@@ -1006,14 +1006,14 @@ void Arranger::genTrackInfo(QWidget* parent)
       noTrackInfo->setGeometry(0, 0, 65, 200);
       noTrackInfo->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding));
 
-      midiTrackInfo = new MidiTrackInfo(trackInfo);
+      midiTrackInfo = new MusEWidget::MidiTrackInfo(trackInfo);
       //midiTrackInfo->setFocusPolicy(Qt::TabFocus);    // p4.0.9
       //midiTrackInfo->setSizePolicy(QSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum));
       trackInfo->addWidget(noTrackInfo,   0);
       trackInfo->addWidget(midiTrackInfo, 1);
       trackInfo->addWidget(0, 2);
 
-///      genMidiTrackInfo();
+///      genMusEWidget::MidiTrackInfo();
       }
 
 //---------------------------------------------------------
@@ -1114,11 +1114,11 @@ void Arranger::keyPressEvent(QKeyEvent* event)
 void Arranger::horizontalZoomIn()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl < 23)
         zoomlvl++;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
@@ -1127,11 +1127,11 @@ void Arranger::horizontalZoomIn()
 void Arranger::horizontalZoomOut()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl > 1)
         zoomlvl--;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
diff --git a/muse2/muse/arranger/arranger.h b/muse2/muse/arranger/arranger.h
index da8e4059..77299ef6 100644
--- a/muse2/muse/arranger/arranger.h
+++ b/muse2/muse/arranger/arranger.h
@@ -39,20 +39,23 @@ class QWheelEvent;
 class QKeyEvent;
 //class QStackedWidget;
 
-class Header;
 class TList;
-class ScrollScale;
-class MTScale;
 class Track;
 class Xml;
-class Splitter;
-class LabelCombo;
-class PosLabel;
-class MidiTrackInfo;
 class TLLayout;
 class WidgetStack;
 class AudioStrip;
+
+namespace MusEWidget {
+class Header;
+class LabelCombo;
+class MidiTrackInfo;
+class MTScale;
+class PosLabel;
+class ScrollScale;
+class Splitter;
 class SpinBox;
+}
 
 //---------------------------------------------------------
 //   WidgetStack
@@ -84,33 +87,33 @@ class Arranger : public QWidget {
 
       int _quant, _raster;
       PartCanvas* canvas;
-      ScrollScale* hscroll;
+      MusEWidget::ScrollScale* hscroll;
       QScrollBar* vscroll;
       TList* list;
-      Header* header;
-      MTScale* time;
-      SpinBox* lenEntry;
+      MusEWidget::Header* header;
+      MusEWidget::MTScale* time;
+      MusEWidget::SpinBox* lenEntry;
       bool showTrackinfoFlag;
       WidgetStack* trackInfo;
       //QStackedWidget* trackInfo;
       QScrollBar* infoScroll;
       //MidiTrackInfoBase* midiTrackInfo;
-      MidiTrackInfo* midiTrackInfo;
+      MusEWidget::MidiTrackInfo* midiTrackInfo;
       AudioStrip* waveTrackInfo;
       QWidget* noTrackInfo;
       TLLayout* tgrid;
 
       Track* selected;
 
-      LabelCombo* typeBox;
+      MusEWidget::LabelCombo* typeBox;
       QToolButton* ib;
       int trackInfoType;
-      Splitter* split;
+      MusEWidget::Splitter* split;
       ///QMenu* pop;
       int songType;
-      PosLabel* cursorPos;
-      SpinBox* globalTempoSpinBox;
-      SpinBox* globalPitchSpinBox;
+      MusEWidget::PosLabel* cursorPos;
+      MusEWidget::SpinBox* globalTempoSpinBox;
+      MusEWidget::SpinBox* globalPitchSpinBox;
       
       unsigned cursVal;
       void genTrackInfo(QWidget* parent);
diff --git a/muse2/muse/arranger/pcanvas.cpp b/muse2/muse/arranger/pcanvas.cpp
index 91a01d8f..0d73ace6 100644
--- a/muse2/muse/arranger/pcanvas.cpp
+++ b/muse2/muse/arranger/pcanvas.cpp
@@ -84,7 +84,7 @@ QIcon colorRect(const QColor& color, int width, int height) {
 //   NPart
 //---------------------------------------------------------
 
-NPart::NPart(Part* e) : CItem(Event(), e)
+NPart::NPart(Part* e) : MusEWidget::CItem(Event(), e)
       {
       leftBorderTouches = false;
       rightBorderTouches = false;
@@ -274,13 +274,13 @@ void PartCanvas::updateSong(DragType t, int flags)
 //   moveCanvasItems
 //---------------------------------------------------------
 
-void PartCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtype)
+void PartCanvas::moveCanvasItems(MusEWidget::CItemList& items, int dp, int dx, DragType dtype)
 {      
   Undo operations;
   
-  for(iCItem ici = items.begin(); ici != items.end(); ++ici) 
+  for(MusEWidget::iCItem ici = items.begin(); ici != items.end(); ++ici) 
   {
-    CItem* ci = ici->second;
+    MusEWidget::CItem* ci = ici->second;
     
     // If this item's part is in the parts2change list, change the item's part to the new part.
     //Part* pt = ci->part();
@@ -319,7 +319,7 @@ void PartCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtyp
 //---------------------------------------------------------
 
 // Changed by T356.
-UndoOp PartCanvas::moveItem(CItem* item, const QPoint& newpos, DragType t)
+UndoOp PartCanvas::moveItem(MusEWidget::CItem* item, const QPoint& newpos, DragType t)
       {
       UndoOp result;
       NPart* npart    = (NPart*) item;
@@ -466,7 +466,7 @@ void PartCanvas::partsChanged()
 
 void PartCanvas::updateSelection()
       {
-      for (iCItem i = items.begin(); i != items.end(); ++i) {
+      for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
             NPart* part = (NPart*)(i->second);
             part->part()->setSelected(i->second->isSelected());
       }
@@ -478,7 +478,7 @@ void PartCanvas::updateSelection()
 //   resizeItem
 //---------------------------------------------------------
 
-void PartCanvas::resizeItem(CItem* i, bool noSnap, bool ctrl)
+void PartCanvas::resizeItem(MusEWidget::CItem* i, bool noSnap, bool ctrl)
       {
       Track* t = ((NPart*)(i))->track();
       Part*  p = ((NPart*)(i))->part();
@@ -500,7 +500,7 @@ void PartCanvas::resizeItem(CItem* i, bool noSnap, bool ctrl)
 //    first create local Item
 //---------------------------------------------------------
 
-CItem* PartCanvas::newItem(const QPoint& pos, int)
+MusEWidget::CItem* PartCanvas::newItem(const QPoint& pos, int)
       {
       int x = pos.x();
       if (x < 0)
@@ -544,7 +544,7 @@ CItem* PartCanvas::newItem(const QPoint& pos, int)
 //   newItem
 //---------------------------------------------------------
 
-void PartCanvas::newItem(CItem* i, bool noSnap)
+void PartCanvas::newItem(MusEWidget::CItem* i, bool noSnap)
       {
       Part*  p = ((NPart*)(i))->part();
 
@@ -562,7 +562,7 @@ void PartCanvas::newItem(CItem* i, bool noSnap)
 //   deleteItem
 //---------------------------------------------------------
 
-bool PartCanvas::deleteItem(CItem* i)
+bool PartCanvas::deleteItem(MusEWidget::CItem* i)
       {
       Part*  p = ((NPart*)(i))->part();
       audio->msgRemovePart(p, true); //Invokes songChanged which calls partsChanged which makes it difficult to delete them there
@@ -573,7 +573,7 @@ bool PartCanvas::deleteItem(CItem* i)
 //   splitItem
 //---------------------------------------------------------
 
-void PartCanvas::splitItem(CItem* item, const QPoint& pt)
+void PartCanvas::splitItem(MusEWidget::CItem* item, const QPoint& pt)
       {
       NPart* np = (NPart*) item;
       Track* t = np->track();
@@ -588,7 +588,7 @@ void PartCanvas::splitItem(CItem* item, const QPoint& pt)
 //   glueItem
 //---------------------------------------------------------
 
-void PartCanvas::glueItem(CItem* item)
+void PartCanvas::glueItem(MusEWidget::CItem* item)
       {
       NPart* np = (NPart*) item;
       Track* t = np->track();
@@ -600,7 +600,7 @@ void PartCanvas::glueItem(CItem* item)
 //   genItemPopup
 //---------------------------------------------------------
 
-QMenu* PartCanvas::genItemPopup(CItem* item)
+QMenu* PartCanvas::genItemPopup(MusEWidget::CItem* item)
       {
       NPart* npart = (NPart*) item;
       Track::TrackType trackType = npart->track()->type();
@@ -692,7 +692,7 @@ QMenu* PartCanvas::genItemPopup(CItem* item)
 //   itemPopup
 //---------------------------------------------------------
 
-void PartCanvas::itemPopup(CItem* item, int n, const QPoint& pt)
+void PartCanvas::itemPopup(MusEWidget::CItem* item, int n, const QPoint& pt)
       {
       PartList* pl = new PartList;
       NPart* npart = (NPart*)(item);
@@ -813,7 +813,7 @@ void PartCanvas::itemPopup(CItem* item, int n, const QPoint& pt)
                     curColorIndex = n - 20;
                     bool selfound = false;
                     //Loop through all parts and set color on selected:
-                    for (iCItem i = items.begin(); i != items.end(); i++) {
+                    for (MusEWidget::iCItem i = items.begin(); i != items.end(); i++) {
                           if (i->second->isSelected()) {
                                 selfound = true;
                                 i->second->part()->setColorIndex(curColorIndex);
@@ -845,7 +845,7 @@ void PartCanvas::mousePress(QMouseEvent* event)
             return;
             }
       QPoint pt = event->pos();
-      CItem* item = items.find(pt);
+      MusEWidget::CItem* item = items.find(pt);
       if (item == 0 && _tool!=MusEWidget::AutomationTool)
             return;
       switch (_tool) {
@@ -1043,7 +1043,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
               event->ignore();  // give global accelerators a chance
               return;
           }
-          for (iCItem i = items.begin(); i != items.end(); ++i) {
+          for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
               NPart* part = (NPart*)(i->second);
               if (part->isSelected()) {
                 curItem=part;
@@ -1054,13 +1054,13 @@ void PartCanvas::keyPress(QKeyEvent* event)
             curItem = (NPart*)items.begin()->second; // just grab the first part
       }
 
-      CItem* newItem = 0;
+      MusEWidget::CItem* newItem = 0;
       bool singleSelection = isSingleSelection();
       bool add = false;
       //Locators to selection
       if (key == shortcuts[SHRT_LOCATORS_TO_SELECTION].key) {
-            CItem *leftmost = 0, *rightmost = 0;
-            for (iCItem i = items.begin(); i != items.end(); i++) {
+            MusEWidget::CItem *leftmost = 0, *rightmost = 0;
+            for (MusEWidget::iCItem i = items.begin(); i != items.end(); i++) {
             if (i->second->isSelected()) {
                   // Check leftmost:
                   if (!leftmost)
@@ -1096,7 +1096,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
             Track* track = part->track();
             unsigned int tick = part->tick();
             bool afterthis = false;
-            for (iCItem i = items.begin(); i != items.end(); ++i) {
+            for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
                   NPart* npart = (NPart*)(i->second);
                   Part* ipart = npart->part();
                   if (ipart->track() != track)
@@ -1124,7 +1124,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
             Track* track = part->track();
             unsigned int tick = part->tick();
 
-            for (iCItem i = items.begin(); i != items.end(); ++i) {
+            for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
                   NPart* npart = (NPart*)(i->second);
                   Part* ipart = npart->part();
 
@@ -1153,7 +1153,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
                   return;
                 }
             int middle = curItem->x() + curItem->part()->lenTick()/2;
-            CItem *aboveL = 0, *aboveR = 0;
+            MusEWidget::CItem *aboveL = 0, *aboveR = 0;
             //Upper limit: song end, lower limit: song start
             int ulimit  = song->len();
             int llimit = 0;
@@ -1174,7 +1174,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
                         }
 
                   if ((aboveL || aboveR) != 0) { //We've hit something
-                        CItem* above  = 0;
+                        MusEWidget::CItem* above  = 0;
                         above = (aboveL !=0) ? aboveL : aboveR;
                         newItem = above;
                         }
@@ -1200,7 +1200,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
             if (!track)
                   return;
 
-            CItem *belowL = 0, *belowR = 0;
+            MusEWidget::CItem *belowL = 0, *belowR = 0;
             //Upper limit: song end , lower limit: song start
             int ulimit = song->len();
             int llimit = 0;
@@ -1220,7 +1220,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
                         }
 
                   if ((belowL || belowR) != 0) { //We've hit something
-                        CItem* below = 0;
+                        MusEWidget::CItem* below = 0;
                         below = (belowL !=0) ? belowL : belowR;
                         newItem = below;
                         }
@@ -1304,7 +1304,7 @@ void PartCanvas::keyPress(QKeyEvent* event)
 //---------------------------------------------------------
 
 #if 0
-void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
+void PartCanvas::drawItem(QPainter& p, const MusEWidget::CItem* item, const QRect& rect)
       {
       int from   = rect.x();
       int to     = from + rect.width();
@@ -1401,7 +1401,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
           QColor c(Qt::black);
           c.setAlpha(MusEConfig::config.globalAlphaBlend);
           QLinearGradient gradient(r.topLeft(), r.bottomLeft());
-          // Use a colour only about 20% lighter than black, rather than the 50% we use in gGradientFromQColor
+          // Use a colour only about 20% lighter than black, rather than the 50% we use in MusEUtil::gGradientFromQColor
           //  and is used in darker()/lighter(), so that it is distinguished a bit better from grey non-part tracks.
           //c.setRgba(64, 64, 64, c.alpha());        
           gradient.setColorAt(0, QColor(51, 51, 51, MusEConfig::config.globalAlphaBlend));
@@ -1429,7 +1429,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
       {
             QColor c(MusEConfig::config.partColors[cidx]);
             c.setAlpha(MusEConfig::config.globalAlphaBlend);
-            brush = QBrush(gGradientFromQColor(c, r.topLeft(), r.bottomLeft()));
+            brush = QBrush(MusEUtil::gGradientFromQColor(c, r.topLeft(), r.bottomLeft()));
       }  
       
       double h = r.height();
@@ -1508,7 +1508,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
         else
           color_brightness=223;   // too dark: use lighter color 
         QColor c(color_brightness,color_brightness,color_brightness, MusEConfig::config.globalAlphaBlend);
-        p.setBrush(QBrush(gGradientFromQColor(c, r.topLeft(), r.bottomLeft())));
+        p.setBrush(QBrush(MusEUtil::gGradientFromQColor(c, r.topLeft(), r.bottomLeft())));
         //p.setBrush(QBrush(c));
         if(het & Part::RightEventsHidden)
         {
@@ -1703,7 +1703,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
             //  get the lowest colour in the gradient used to draw the part.
             QRect rr = map(r);
             rr.setX(rr.x() + 3);
-            gGradientFromQColor(MusEConfig::config.partColors[cidx], rr.topLeft(), rr.bottomLeft()).stops().last().second.getRgb(&part_r, &part_g, &part_b);
+            MusEUtil::gGradientFromQColor(MusEConfig::config.partColors[cidx], rr.topLeft(), rr.bottomLeft()).stops().last().second.getRgb(&part_r, &part_g, &part_b);
             brightness =  part_r*29 + part_g*59 + part_b*12;
             //bool rev = (brightness < 12000 || part->selected()) && !part->mute() && !item->isMoving();
             bool rev = brightness >= 12000 && !part->selected();
@@ -1725,7 +1725,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
       }
 #endif
 
-void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
+void PartCanvas::drawItem(QPainter& p, const MusEWidget::CItem* item, const QRect& rect)
       {
       int from   = rect.x();
       int to     = from + rect.width();
@@ -1826,7 +1826,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
           QColor c(Qt::black);
           c.setAlpha(MusEConfig::config.globalAlphaBlend);
           QLinearGradient gradient(rr.topLeft(), rr.bottomLeft());
-          // Use a colour only about 20% lighter than black, rather than the 50% we use in gGradientFromQColor
+          // Use a colour only about 20% lighter than black, rather than the 50% we use in MusEUtil::gGradientFromQColor
           //  and is used in darker()/lighter(), so that it is distinguished a bit better from grey non-part tracks.
           //c.setRgba(64, 64, 64, c.alpha());        
           gradient.setColorAt(0, QColor(51, 51, 51, MusEConfig::config.globalAlphaBlend));
@@ -1847,7 +1847,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
       {
             QColor c(MusEConfig::config.partColors[cidx]);
             c.setAlpha(MusEConfig::config.globalAlphaBlend);
-            brush = QBrush(gGradientFromQColor(c, rr.topLeft(), rr.bottomLeft()));
+            brush = QBrush(MusEUtil::gGradientFromQColor(c, rr.topLeft(), rr.bottomLeft()));
       }  
       
       int h = rr.height();
@@ -1948,7 +1948,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
         else
           color_brightness=180; //255;   // too dark: use lighter color 
         QColor c(color_brightness,color_brightness,color_brightness, MusEConfig::config.globalAlphaBlend);
-        p.setBrush(QBrush(gGradientFromQColor(c, rr.topLeft(), rr.bottomLeft())));
+        p.setBrush(QBrush(MusEUtil::gGradientFromQColor(c, rr.topLeft(), rr.bottomLeft())));
         //p.setBrush(QBrush(c));
         if(het & Part::RightEventsHidden)
         {
@@ -2167,7 +2167,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
             //QRect rr = map(r);
             QRect tr = rr;
             tr.setX(tr.x() + 3);
-            gGradientFromQColor(MusEConfig::config.partColors[cidx], tr.topLeft(), tr.bottomLeft()).stops().last().second.getRgb(&part_r, &part_g, &part_b);
+            MusEUtil::gGradientFromQColor(MusEConfig::config.partColors[cidx], tr.topLeft(), tr.bottomLeft()).stops().last().second.getRgb(&part_r, &part_g, &part_b);
             brightness =  part_r*29 + part_g*59 + part_b*12;
             //bool rev = (brightness < 12000 || part->selected()) && !part->mute() && !item->isMoving();
             bool rev = brightness >= 12000 && !part->selected();
@@ -2193,7 +2193,7 @@ void PartCanvas::drawItem(QPainter& p, const CItem* item, const QRect& rect)
 //    draws moving items
 //---------------------------------------------------------
 
-void PartCanvas::drawMoving(QPainter& p, const CItem* item, const QRect&)
+void PartCanvas::drawMoving(QPainter& p, const MusEWidget::CItem* item, const QRect&)
       {
         p.setPen( Qt::black);
         Part* part = ((NPart*)item)->part();
@@ -2560,7 +2560,7 @@ void PartCanvas::drawWavePart(QPainter& p,
 void PartCanvas::cmd(int cmd)
       {
       PartList pl;
-      for (iCItem i = items.begin(); i != items.end(); ++i) {
+      for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
             if (!i->second->isSelected())
                   continue;
             NPart* npart = (NPart*)(i->second);
@@ -2573,7 +2573,7 @@ void PartCanvas::cmd(int cmd)
                   
                   Undo operations;
                   
-                  for (iCItem i = items.begin(); i != items.end(); ++i) {
+                  for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
                         if (i->second->isSelected()) {
                               NPart* p = (NPart*)(i->second);
                               Part* part = p->part();
@@ -2895,7 +2895,7 @@ Undo PartCanvas::movePartsTotheRight(unsigned int startTicks, int length)
         Undo operations;
         
         // all parts that start after the pasted parts will be moved the entire length of the pasted parts
-        for (iCItem i = items.begin(); i != items.end(); ++i) {
+        for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
           if (!i->second->isSelected()) {
               Part* part = i->second->part();
               if (part->tick() >= startTicks) {
@@ -2925,7 +2925,7 @@ Undo PartCanvas::movePartsTotheRight(unsigned int startTicks, int length)
 //   startDrag
 //---------------------------------------------------------
 
-void PartCanvas::startDrag(CItem* item, DragType t)
+void PartCanvas::startDrag(MusEWidget::CItem* item, DragType t)
       {
       NPart* p = (NPart*)(item);
       Part* part = p->part();
diff --git a/muse2/muse/arranger/pcanvas.h b/muse2/muse/arranger/pcanvas.h
index 4f154a97..927a64e1 100644
--- a/muse2/muse/arranger/pcanvas.h
+++ b/muse2/muse/arranger/pcanvas.h
@@ -45,7 +45,7 @@ class QDragEnterEvent;
 //    for displaying
 //---------------------------------------------------------
 
-class NPart : public CItem {
+class NPart : public MusEWidget::CItem {
    public:
       NPart(Part* e);
       const QString name() const     { return part()->name(); }
@@ -98,30 +98,30 @@ class PartCanvas : public MusEWidget::Canvas {
       virtual void mouseRelease(const QPoint&);
       virtual void viewMouseDoubleClickEvent(QMouseEvent*);
       virtual void leaveEvent(QEvent*e);
-      virtual void drawItem(QPainter&, const CItem*, const QRect&);
-      virtual void drawMoving(QPainter&, const CItem*, const QRect&);
+      virtual void drawItem(QPainter&, const MusEWidget::CItem*, const QRect&);
+      virtual void drawMoving(QPainter&, const MusEWidget::CItem*, const QRect&);
       virtual void updateSelection();
       virtual QPoint raster(const QPoint&) const;
       virtual int y2pitch(int y) const;
       virtual int pitch2y(int p) const;
       
-      virtual CItem* newItem(const QPoint&, int);
-      virtual void resizeItem(CItem*,bool, bool ctrl);
-      virtual void newItem(CItem*,bool);
-      virtual bool deleteItem(CItem*);
-      virtual void moveCanvasItems(CItemList&, int, int, DragType);
-      virtual UndoOp moveItem(CItem*, const QPoint&, DragType);
+      virtual MusEWidget::CItem* newItem(const QPoint&, int);
+      virtual void resizeItem(MusEWidget::CItem*,bool, bool ctrl);
+      virtual void newItem(MusEWidget::CItem*,bool);
+      virtual bool deleteItem(MusEWidget::CItem*);
+      virtual void moveCanvasItems(MusEWidget::CItemList&, int, int, DragType);
+      virtual UndoOp moveItem(MusEWidget::CItem*, const QPoint&, DragType);
 
       virtual void updateSong(DragType, int);
-      virtual void startDrag(CItem*, DragType);
+      virtual void startDrag(MusEWidget::CItem*, DragType);
       virtual void dragEnterEvent(QDragEnterEvent*);
       virtual void viewDropEvent(QDropEvent*);
 
-      virtual QMenu* genItemPopup(CItem*);
-      virtual void itemPopup(CItem*, int, const QPoint&);
+      virtual QMenu* genItemPopup(MusEWidget::CItem*);
+      virtual void itemPopup(MusEWidget::CItem*, int, const QPoint&);
 
-      void glueItem(CItem* item);
-      void splitItem(CItem* item, const QPoint&);
+      void glueItem(MusEWidget::CItem* item);
+      void splitItem(MusEWidget::CItem* item, const QPoint&);
 
       void copy(PartList*);
       void paste(bool clone = false, bool toTrack = true, bool doInsert=false);
diff --git a/muse2/muse/arranger/tlist.cpp b/muse2/muse/arranger/tlist.cpp
index 4199e135..db83ad71 100644
--- a/muse2/muse/arranger/tlist.cpp
+++ b/muse2/muse/arranger/tlist.cpp
@@ -78,7 +78,7 @@ QColor collist[] = { Qt::red, Qt::yellow, Qt::blue , Qt::black, Qt::white, Qt::g
 //   TList
 //---------------------------------------------------------
 
-TList::TList(Header* hdr, QWidget* parent, const char* name)
+TList::TList(MusEWidget::Header* hdr, QWidget* parent, const char* name)
    : QWidget(parent) // Qt::WNoAutoErase | Qt::WResizeNoErase are no longer needed according to Qt4 doc
       {
       setBackgroundRole(QPalette::NoRole);
@@ -570,7 +570,7 @@ void TList::portsPopupMenu(Track* t, int x, int y)
                   {
                   MidiTrack* track = (MidiTrack*)t;
                   
-                  //QPopupMenu* p = midiPortsPopup(0);
+                  //QMusEWidget::PopupMenu* p = midiPortsPopup(0);
                   MidiDevice* md = 0;
                   int port = -1; 
                   if(t->type() == Track::AUDIO_SOFTSYNTH) 
@@ -953,10 +953,10 @@ void TList::changeAutomationColor(QAction* act)
 //   colorMenu
 //---------------------------------------------------------
 //QMenu* TList::colorMenu(QColor c, int id)
-PopupMenu* TList::colorMenu(QColor c, int id)
+MusEWidget::PopupMenu* TList::colorMenu(QColor c, int id)
 {
   //QMenu * m = new QMenu(this);
-  PopupMenu * m = new PopupMenu(this);  //, true);  TODO
+  MusEWidget::PopupMenu * m = new MusEWidget::PopupMenu(this);  //, true);  TODO
   for (int i = 0; i< 6; i++) {
     QPixmap pix(10,10);
     QPainter p(&pix);
@@ -1160,7 +1160,7 @@ void TList::mousePressEvent(QMouseEvent* ev)
                 {
                 if (!t->isMidiTrack()) {
                     editAutomation = t;
-                    PopupMenu* p = new PopupMenu(true);
+                    MusEWidget::PopupMenu* p = new MusEWidget::PopupMenu(true);
                     p->disconnect();
                     p->clear();
                     p->setTitle(tr("Viewable automation"));
@@ -1178,7 +1178,7 @@ void TList::mousePressEvent(QMouseEvent* ev)
                       data += 150; // illegal color > 100
                       act->setData(data);
                       //QMenu *m = colorMenu(cl->color(), cl->id());
-                      PopupMenu *m = colorMenu(cl->color(), cl->id());
+                      MusEWidget::PopupMenu *m = colorMenu(cl->color(), cl->id());
                       act->setMenu(m);
                     }
                     connect(p, SIGNAL(triggered(QAction*)), SLOT(changeAutomation(QAction*)));
@@ -1306,7 +1306,7 @@ void TList::mousePressEvent(QMouseEvent* ev)
 
                                     case 1:     // show track comment
                                           {
-                                          TrackComment* tc = new TrackComment(t, 0);
+                                          MusEWidget::TrackComment* tc = new MusEWidget::TrackComment(t, 0);
                                           tc->show();
                                           //QToolTip::add( this, "FOOOOOOOOOOOOO" );
                                           }
diff --git a/muse2/muse/arranger/tlist.h b/muse2/muse/arranger/tlist.h
index 44b2ecc9..970df420 100644
--- a/muse2/muse/arranger/tlist.h
+++ b/muse2/muse/arranger/tlist.h
@@ -36,12 +36,15 @@ class QResizeEvent;
 class QScrollBar;
 class QWheelEvent;
 //class QMenu;
-class PopupMenu;
 
 class ScrollScale;
 class Track;
 class Xml;
+
+namespace MusEWidget {
 class Header;
+class PopupMenu;
+}
 
 enum TrackColumn {
       COL_RECORD = 0,
@@ -70,7 +73,7 @@ class TList : public QWidget {
       QPixmap bgPixmap;       // background Pixmap
       bool resizeFlag;        // true if resize cursor is shown
 
-      Header* header;
+      MusEWidget::Header* header;
       QScrollBar* _scroll;
       QLineEdit* editor;
       QSpinBox* chan_edit;
@@ -105,7 +108,7 @@ class TList : public QWidget {
       TrackList getRecEnabledTracks();
       void setHeaderToolTips();
       //QMenu* colorMenu(QColor c, int id);
-      PopupMenu* colorMenu(QColor c, int id);
+      MusEWidget::PopupMenu* colorMenu(QColor c, int id);
 
    private slots:
       void returnPressed();
@@ -130,7 +133,7 @@ class TList : public QWidget {
       void selectTrackBelow();
 
    public:
-      TList(Header*, QWidget* parent, const char* name);
+      TList(MusEWidget::Header*, QWidget* parent, const char* name);
       void setScroll(QScrollBar* s) { _scroll = s; }
       Track* track() const { return editTrack; }
       void writeStatus(int level, Xml&, const char* name) const;
diff --git a/muse2/muse/audio.cpp b/muse2/muse/audio.cpp
index 09acb425..a82fbe13 100644
--- a/muse2/muse/audio.cpp
+++ b/muse2/muse/audio.cpp
@@ -48,7 +48,10 @@
 #include "pos.h"
 #include "ticksynth.h"
 
+namespace MusEUtil {
 extern double curTime();
+}
+
 Audio* audio;
 AudioDevice* audioDevice;   // current audio device in use
 
@@ -508,7 +511,7 @@ void Audio::process(unsigned frames)
       // resync with audio interface
       //
       syncFrame   = audioDevice->framePos();
-      syncTime    = curTime();
+      syncTime    = MusEUtil::curTime();
       frameOffset = syncFrame - samplePos;
 
       //printf("Audio::process calling process1:\n");
@@ -769,7 +772,7 @@ void Audio::processMsg(AudioMsg* msg)
                         _pos.setTick(curTickPos);
                         int samplePos = _pos.frame();
                         syncFrame     = audioDevice->framePos();
-                        syncTime      = curTime();
+                        syncTime      = MusEUtil::curTime();
                         frameOffset   = syncFrame - samplePos;
                         }
                   break;
@@ -1473,7 +1476,7 @@ void Audio::recordStop()
 
 unsigned int Audio::curFrame() const
       {
-      return lrint((curTime() - syncTime) * MusEGlobal::sampleRate) + syncFrame;
+      return lrint((MusEUtil::curTime() - syncTime) * MusEGlobal::sampleRate) + syncFrame;
       }
 
 //---------------------------------------------------------
diff --git a/muse2/muse/conf.cpp b/muse2/muse/conf.cpp
index 69a36d9b..25f74448 100644
--- a/muse2/muse/conf.cpp
+++ b/muse2/muse/conf.cpp
@@ -1486,8 +1486,8 @@ void MusE::writeConfiguration(int level, Xml& xml) const
 void MusE::configMidiSync()
       {
       if (!midiSyncConfig)
-        //midiSyncConfig = new MidiSyncConfig(this);
-        midiSyncConfig = new MidiSyncConfig;
+        //midiSyncConfig = new MusEWidget::MidiSyncConfig(this);
+        midiSyncConfig = new MusEWidget::MidiSyncConfig;
         
       if (midiSyncConfig->isVisible()) {
           midiSyncConfig->raise();
@@ -1522,7 +1522,7 @@ void MusE::configMidiFile()
 void MusE::configGlobalSettings()
       {
       if (!globalSettingsConfig)
-            globalSettingsConfig = new GlobalSettingsConfig();
+          globalSettingsConfig = new MusEWidget::GlobalSettingsConfig();
 
       if (globalSettingsConfig->isVisible()) {
           globalSettingsConfig->raise();
diff --git a/muse2/muse/confmport.cpp b/muse2/muse/confmport.cpp
index b451a749..42fb5276 100644
--- a/muse2/muse/confmport.cpp
+++ b/muse2/muse/confmport.cpp
@@ -130,7 +130,7 @@ void MPConfig::changeDefInputRoutes(QAction* act)
     else
       chbits = defch ^ (1 << actid);
     midiPorts[no].setDefaultInChannels(chbits);
-    mdevView->item(item->row(), DEVCOL_DEF_IN_CHANS)->setText(bitmap2String(chbits));
+    mdevView->item(item->row(), DEVCOL_DEF_IN_CHANS)->setText(MusEUtil::bitmap2String(chbits));
   }  
 }
 
@@ -217,7 +217,7 @@ void MPConfig::changeDefOutputRoutes(QAction* act)
     else
       chbits = defch ^ (1 << actid);
     midiPorts[no].setDefaultOutChannels(chbits);
-    mdevView->item(item->row(), DEVCOL_DEF_OUT_CHANS)->setText(bitmap2String(chbits));
+    mdevView->item(item->row(), DEVCOL_DEF_OUT_CHANS)->setText(MusEUtil::bitmap2String(chbits));
     #else
     if(actid < MIDI_CHANNELS)
     {
@@ -226,7 +226,7 @@ void MPConfig::changeDefOutputRoutes(QAction* act)
       setPortExclusiveDefOutChan(no, chbits);
       int j = mdevView->rowCount();
       for(int i = 0; i < j; ++i)
-        mdevView->item(i, DEVCOL_DEF_OUT_CHANS)->setText(bitmap2String(i == no ? chbits : 0));
+        mdevView->item(i, DEVCOL_DEF_OUT_CHANS)->setText(MusEUtil::bitmap2String(i == no ? chbits : 0));
       if(defpup)
       {
         QAction* a;
@@ -624,8 +624,8 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                   return;
                   #else
                   {
-                    defpup = new PopupMenu(this, true);
-                    defpup->addAction(new MenuTitleItem("Channel", defpup)); 
+                    defpup = new MusEWidget::PopupMenu(this, true);
+                    defpup->addAction(new MusEWidget::MenuTitleItem("Channel", defpup)); 
                     QAction* act = 0;
                     int chbits = midiPorts[no].defaultInChannels();
                     for(int i = 0; i < MIDI_CHANNELS; ++i) 
@@ -647,7 +647,7 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                     act->setEnabled(!song->midis()->empty());  // && midiPorts[no].device());
                     
                     connect(defpup, SIGNAL(triggered(QAction*)), SLOT(changeDefInputRoutes(QAction*)));
-                    //connect(defpup, SIGNAL(aboutToHide()), MusEGlobal::muse, SLOT(routingPopupMenuAboutToHide()));
+                    //connect(defpup, SIGNAL(aboutToHide()), MusEGlobal::muse, SLOT(routingMusEWidget::PopupMenuAboutToHide()));
                     //defpup->popup(QCursor::pos());
                     defpup->exec(QCursor::pos());
                     delete defpup;
@@ -664,8 +664,8 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                   return;
                   #else
                   {
-                    defpup = new PopupMenu(this, true);
-                    defpup->addAction(new MenuTitleItem("Channel", defpup)); 
+                    defpup = new MusEWidget::PopupMenu(this, true);
+                    defpup->addAction(new MusEWidget::MenuTitleItem("Channel", defpup)); 
                     QAction* act = 0;
                     int chbits = midiPorts[no].defaultOutChannels();
                     for(int i = 0; i < MIDI_CHANNELS; ++i) 
@@ -690,7 +690,7 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                     act->setEnabled(!song->midis()->empty());  // && midiPorts[no].device());
                     
                     connect(defpup, SIGNAL(triggered(QAction*)), SLOT(changeDefOutputRoutes(QAction*)));
-                    //connect(defpup, SIGNAL(aboutToHide()), MusEGlobal::muse, SLOT(routingPopupMenuAboutToHide()));
+                    //connect(defpup, SIGNAL(aboutToHide()), MusEGlobal::muse, SLOT(routingMusEWidget::PopupMenuAboutToHide()));
                     //defpup->popup(QCursor::pos());
                     defpup->exec(QCursor::pos());
                     delete defpup;
@@ -772,7 +772,7 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                       //if(!mapALSA.empty())
                       {
                         pup->addSeparator();
-                        pup->addAction(new MenuTitleItem(QT_TRANSLATE_NOOP("@default", "ALSA:"), pup));
+                        pup->addAction(new MusEWidget::MenuTitleItem(QT_TRANSLATE_NOOP("@default", "ALSA:"), pup));
                         
                         for(imap i = mapALSA.begin(); i != mapALSA.end(); ++i) 
                         {
@@ -798,7 +798,7 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                       if(!mapSYNTH.empty())
                       {
                         pup->addSeparator();
-                        pup->addAction(new MenuTitleItem(QT_TRANSLATE_NOOP("@default", "SYNTH:"), pup));
+                        pup->addAction(new MusEWidget::MenuTitleItem(QT_TRANSLATE_NOOP("@default", "SYNTH:"), pup));
                         
                         for(imap i = mapSYNTH.begin(); i != mapSYNTH.end(); ++i) 
                         {
@@ -824,7 +824,7 @@ void MPConfig::rbClicked(QTableWidgetItem* item)
                       //if(!mapJACK.empty())
                       {
                         pup->addSeparator();
-                        pup->addAction(new MenuTitleItem(QT_TRANSLATE_NOOP("@default", "JACK:"), pup));
+                        pup->addAction(new MusEWidget::MenuTitleItem(QT_TRANSLATE_NOOP("@default", "JACK:"), pup));
                         
                         for(imap i = mapJACK.begin(); i != mapJACK.end(); ++i) 
                         {
@@ -1179,10 +1179,10 @@ void MPConfig::songChanged(int flags)
 	    QTableWidgetItem* itemin = new QTableWidgetItem;
 	    addItem(i, DEVCOL_INROUTES, itemin, mdevView);
 	    itemin->setFlags(Qt::ItemIsEnabled);
-            //QTableWidgetItem* itemdefin = new QTableWidgetItem(bitmap2String(port->defaultInChannels()));
+            //QTableWidgetItem* itemdefin = new QTableWidgetItem(MusEUtil::bitmap2String(port->defaultInChannels()));
             // Ignore synth devices. Default input routes make no sense for them (right now).
             QTableWidgetItem* itemdefin = new QTableWidgetItem((dev && dev->isSynti()) ? 
-                                               QString() : bitmap2String(port->defaultInChannels()));
+                                               QString() : MusEUtil::bitmap2String(port->defaultInChannels()));
             addItem(i, DEVCOL_DEF_IN_CHANS, itemdefin, mdevView);
             // Enabled: Use editor (not good). Disabled: Use pop-up menu.
             #if 0
@@ -1199,12 +1199,12 @@ void MPConfig::songChanged(int flags)
             
             // Turn on if and when multiple output routes are supported.
             #if 0
-            QTableWidgetItem* itemdefout = new QTableWidgetItem(bitmap2String(port->defaultOutChannels()));
+            QTableWidgetItem* itemdefout = new QTableWidgetItem(MusEUtil::bitmap2String(port->defaultOutChannels()));
             addItem(i, DEVCOL_DEF_OUT_CHANS, itemdefout, mdevView);
             itemdefout->setFlags(Qt::ItemIsEditable | Qt::ItemIsEnabled);
             #else
             //QTableWidgetItem* itemdefout = new QTableWidgetItem(QString("--"));
-            QTableWidgetItem* itemdefout = new QTableWidgetItem(bitmap2String(0));
+            QTableWidgetItem* itemdefout = new QTableWidgetItem(MusEUtil::bitmap2String(0));
             defochs = port->defaultOutChannels();
             if(defochs)
             {
diff --git a/muse2/muse/confmport.h b/muse2/muse/confmport.h
index e6ea5f0e..3e286b60 100644
--- a/muse2/muse/confmport.h
+++ b/muse2/muse/confmport.h
@@ -34,9 +34,12 @@ class QTableWidget;
 class QPoint;
 class QMenu;
 class QAction;
-class PopupMenu;
 class Xml;
 
+namespace MusEWidget {
+class PopupMenu;
+}
+
 //---------------------------------------------------------
 //   MPConfig
 //    Midi Port Config
@@ -46,7 +49,7 @@ class MPConfig : public QDialog, Ui::SynthConfigBase {
       Q_OBJECT
       QMenu* instrPopup;
       //QMenu* popup;
-      PopupMenu* defpup;
+      MusEWidget::PopupMenu* defpup;
       int _showAliases; // -1: None. 0: First aliases. 1: Second aliases etc.
       void setWhatsThis(QTableWidgetItem *item, int col);
       void setToolTip(QTableWidgetItem *item, int col);
diff --git a/muse2/muse/ctrl/ctrlcanvas.h b/muse2/muse/ctrl/ctrlcanvas.h
index 8846d2ce..c9baf752 100644
--- a/muse2/muse/ctrl/ctrlcanvas.h
+++ b/muse2/muse/ctrl/ctrlcanvas.h
@@ -95,7 +95,7 @@ class CEventList: public std::list<CEvent*> {
 //   CtrlCanvas
 //---------------------------------------------------------
 
-class CtrlCanvas : public View {
+class CtrlCanvas : public MusEWidget::View {
       Q_OBJECT
     
       MidiEditor* editor;
diff --git a/muse2/muse/ctrl/ctrledit.cpp b/muse2/muse/ctrl/ctrledit.cpp
index c9c33999..61f87d28 100644
--- a/muse2/muse/ctrl/ctrledit.cpp
+++ b/muse2/muse/ctrl/ctrledit.cpp
@@ -55,7 +55,7 @@ CtrlEdit::CtrlEdit(QWidget* parent, MidiEditor* e, int xmag,
       QHBoxLayout* hbox = new QHBoxLayout;
       panel             = new CtrlPanel(0, e, "panel");
       canvas            = new CtrlCanvas(e, 0, xmag, "ctrlcanvas", panel);
-      QWidget* vscale   = new VScale;
+      QWidget* vscale   = new MusEWidget::VScale;
 
       hbox->setContentsMargins(0, 0, 0, 0);
       hbox->setSpacing (0);
diff --git a/muse2/muse/ctrl/ctrlpanel.cpp b/muse2/muse/ctrl/ctrlpanel.cpp
index 998058d7..cb18afad 100644
--- a/muse2/muse/ctrl/ctrlpanel.cpp
+++ b/muse2/muse/ctrl/ctrlpanel.cpp
@@ -111,7 +111,7 @@ CtrlPanel::CtrlPanel(QWidget* parent, MidiEditor* e, const char* name)
       _val = CTRL_VAL_UNKNOWN;
       _dnum = -1;
       
-      _knob = new Knob;
+      _knob = new MusEWidget::Knob;
       _knob->setFixedWidth(25);
       _knob->setFixedHeight(25);
       _knob->setToolTip(tr("manual adjust"));
@@ -121,7 +121,7 @@ CtrlPanel::CtrlPanel(QWidget* parent, MidiEditor* e, const char* name)
       _knob->hide();
       _knob->setAltFaceColor(Qt::red);
       
-      _dl = new DoubleLabel(-1.0, 0.0, +127.0);
+      _dl = new MusEWidget::DoubleLabel(-1.0, 0.0, +127.0);
       _dl->setPrecision(0);
       _dl->setToolTip(tr("double click on/off"));
       _dl->setSpecialText(tr("off"));
@@ -184,7 +184,7 @@ void CtrlPanel::heartBeat()
       int v = mp->hwCtrlState(chan, _dnum);
       if(v == CTRL_VAL_UNKNOWN)
       {
-        // DoubleLabel ignores the value if already set...
+        // MusEWidget::DoubleLabel ignores the value if already set...
         _dl->setValue(_dl->off() - 1.0);
         _val = CTRL_VAL_UNKNOWN;
         v = mp->lastValidHWCtrlState(chan, _dnum);
@@ -210,7 +210,7 @@ void CtrlPanel::heartBeat()
         _val = v;
         if(v == CTRL_VAL_UNKNOWN || ((_dnum == CTRL_PROGRAM) && ((v & 0xff) == 0xff) ))
         {
-          // DoubleLabel ignores the value if already set...
+          // MusEWidget::DoubleLabel ignores the value if already set...
           //_dl->setValue(double(_ctrl->minVal() - 1));
           _dl->setValue(_dl->off() - 1.0);
         }
@@ -774,10 +774,10 @@ void CtrlPanel::ctrlPopup()
                   }
             }
       
-      PopupMenu* ctrlMainPop = new PopupMenu;
+      MusEWidget::PopupMenu* ctrlMainPop = new MusEWidget::PopupMenu;
       
       //ctrlMainPop->addSeparator();
-      ctrlMainPop->addAction(new MenuTitleItem(tr("Instrument-defined"), ctrlMainPop));
+      ctrlMainPop->addAction(new MusEWidget::MenuTitleItem(tr("Instrument-defined"), ctrlMainPop));
       
       //ctrlMainPop->addAction(QIcon(*configureIcon), tr("Add ..."))->setData(max + 1);
       
@@ -796,7 +796,7 @@ void CtrlPanel::ctrlPopup()
       //ctrlMainPop->addAction(QIcon(*midi_edit_instrumentIcon), tr("Edit instruments"))->setData(max + 2);
 
       ctrlMainPop->addSeparator();
-      ctrlMainPop->addAction(new MenuTitleItem(tr("Others"), ctrlMainPop));
+      ctrlMainPop->addAction(new MusEWidget::MenuTitleItem(tr("Others"), ctrlMainPop));
       
       //ctrlMainPop->addAction(QIcon(*configureIcon), tr("Add ..."))->setData(max + 3);
       
@@ -834,8 +834,8 @@ void CtrlPanel::ctrlPopup()
             }
       else if (rv == max + 1) {  // add new instrument controller
             
-            PopupMenu * ctrlSubPop = new PopupMenu(this);
-            ctrlSubPop->addAction(new MenuTitleItem(tr("Instrument-defined"), ctrlSubPop));
+            MusEWidget::PopupMenu * ctrlSubPop = new MusEWidget::PopupMenu(this);
+            ctrlSubPop->addAction(new MusEWidget::MenuTitleItem(tr("Instrument-defined"), ctrlSubPop));
             
             //
             // populate popup with all controllers available for
@@ -906,8 +906,8 @@ void CtrlPanel::ctrlPopup()
       //      MusEGlobal::muse->startEditInstrument();
       
       else if (rv == max + 3) {             // add new other controller
-            PopupMenu* ctrlSubPop = new PopupMenu(this);
-            ctrlSubPop->addAction(new MenuTitleItem(tr("Common Controls"), ctrlSubPop));
+            MusEWidget::PopupMenu* ctrlSubPop = new MusEWidget::PopupMenu(this);
+            ctrlSubPop->addAction(new MusEWidget::MenuTitleItem(tr("Common Controls"), ctrlSubPop));
             
             for(int num = 0; num < 127; ++num)
               if(cll->find(channel, num) == cll->end())
diff --git a/muse2/muse/ctrl/ctrlpanel.h b/muse2/muse/ctrl/ctrlpanel.h
index 58282b64..0376a245 100644
--- a/muse2/muse/ctrl/ctrlpanel.h
+++ b/muse2/muse/ctrl/ctrlpanel.h
@@ -29,9 +29,12 @@ class MidiController;
 
 class QPushButton;
 
-class MidiEditor;
+namespace MusEWidget {
 class Knob;
 class DoubleLabel;
+}
+
+class MidiEditor;
 class MidiPort;
 class MidiTrack;
 
@@ -50,8 +53,8 @@ class CtrlPanel: public QWidget {
       MidiController* _ctrl;
       int _dnum;
       bool inHeartBeat;
-      Knob* _knob;
-      DoubleLabel* _dl;
+      MusEWidget::Knob* _knob;
+      MusEWidget::DoubleLabel* _dl;
       int _val;
       
       
diff --git a/muse2/muse/driver/dummyaudio.cpp b/muse2/muse/driver/dummyaudio.cpp
index 77b08252..4466e293 100644
--- a/muse2/muse/driver/dummyaudio.cpp
+++ b/muse2/muse/driver/dummyaudio.cpp
@@ -140,7 +140,7 @@ class DummyAudioDevice : public AudioDevice {
       
       return _framePos; }
       virtual unsigned frameTime() const {
-            return lrint(curTime() * MusEGlobal::sampleRate);
+            return lrint(MusEUtil::curTime() * MusEGlobal::sampleRate);
             }
       virtual bool isRealtime() { return realtimeFlag; }
       //virtual int realtimePriority() const { return 40; }
@@ -221,7 +221,7 @@ DummyAudioDevice::DummyAudioDevice()
       realtimeFlag = false;
       seekflag = false;
       state = Audio::STOP;
-      //startTime = curTime();
+      //startTime = MusEUtil::curTime();
       _framePos = 0;
       playPos = 0;
       cmdQueue.clear();
diff --git a/muse2/muse/driver/jack.cpp b/muse2/muse/driver/jack.cpp
index f99e07b9..31179ea3 100644
--- a/muse2/muse/driver/jack.cpp
+++ b/muse2/muse/driver/jack.cpp
@@ -1868,11 +1868,11 @@ bool JackAudioDevice::dummySync(int state)
   //timespec ts = { 0, (1000000000 * MusEGlobal::segmentSize) / MusEGlobal::sampleRate };     // In nanoseconds.
   unsigned int sl = (1000000 * MusEGlobal::segmentSize) / MusEGlobal::sampleRate;            // In microseconds.
   
-  double ct = curTime();
+  double ct = MusEUtil::curTime();
   // Wait for a default maximum of 5 seconds. 
   // Similar to how Jack is supposed to wait a default of 2 seconds for slow clients.
   // TODO: Make this timeout a 'settings' option so it can be applied both to Jack and here.
-  while((curTime() - ct) < 5.0)  
+  while((MusEUtil::curTime() - ct) < 5.0)  
   {
     // Is MusE audio ready to roll?
     if(audio->sync(state, dummyPos))
diff --git a/muse2/muse/dssihost.cpp b/muse2/muse/dssihost.cpp
index 9787f3f0..1f7009a4 100644
--- a/muse2/muse/dssihost.cpp
+++ b/muse2/muse/dssihost.cpp
@@ -3419,7 +3419,7 @@ const char* DssiSynthIF::getPatchName(int /*chan*/, int prog, MType /*type*/, bo
 //---------------------------------------------------------
 
 //void DssiSynthIF::populatePatchPopup(QMenu* menu, int)
-void DssiSynthIF::populatePatchPopup(PopupMenu* menu, int /*ch*/, MType /*type*/, bool /*drum*/)
+void DssiSynthIF::populatePatchPopup(MusEWidget::PopupMenu* menu, int /*ch*/, MType /*type*/, bool /*drum*/)
       {
       // The plugin can change the programs, patches etc.
       // So make sure we're up to date by calling queryPrograms.
diff --git a/muse2/muse/dssihost.h b/muse2/muse/dssihost.h
index d84a9716..802e0e95 100644
--- a/muse2/muse/dssihost.h
+++ b/muse2/muse/dssihost.h
@@ -211,7 +211,7 @@ class DssiSynthIF : public SynthIF, public PluginIBase
       
       //virtual void populatePatchPopup(QMenu*, int);
       //virtual void populatePatchPopup(QMenu*, int, MType, bool);
-      virtual void populatePatchPopup(PopupMenu*, int, MType, bool);
+	virtual void populatePatchPopup(MusEWidget::PopupMenu*, int, MType, bool);
       
       //virtual void write(Xml& xml) const;
       virtual void write(int level, Xml& xml) const;
diff --git a/muse2/muse/exportmidi.cpp b/muse2/muse/exportmidi.cpp
index 332ad026..450aa992 100644
--- a/muse2/muse/exportmidi.cpp
+++ b/muse2/muse/exportmidi.cpp
@@ -136,7 +136,7 @@ namespace MusEApp {
 
 void MusE::exportMidi()
       {
-      MFile file(QString("midis"), QString(".mid"));
+      MusEWidget::MFile file(QString("midis"), QString(".mid"));
 
       //FILE* fp = file.open("w", midi_file_pattern, this, false, true,
       FILE* fp = file.open("w", MusEGlobal::midi_file_save_pattern, this, false, true,
diff --git a/muse2/muse/functions.cpp b/muse2/muse/functions.cpp
index 52c27629..b178bcb6 100644
--- a/muse2/muse/functions.cpp
+++ b/muse2/muse/functions.cpp
@@ -45,29 +45,29 @@
 
 using namespace std;
 
-GateTime* gatetime_dialog=NULL;
-Velocity* velocity_dialog=NULL;
-Quantize* quantize_dialog=NULL;
-Remove* erase_dialog=NULL;
-DelOverlaps* del_overlaps_dialog=NULL;
-Setlen* set_notelen_dialog=NULL;
-Move* move_notes_dialog=NULL;
-Transpose* transpose_dialog=NULL;
-Crescendo* crescendo_dialog=NULL;
-Legato* legato_dialog=NULL;
+MusEDialog::GateTime* gatetime_dialog=NULL;
+MusEDialog::Velocity* velocity_dialog=NULL;
+MusEDialog::Quantize* quantize_dialog=NULL;
+MusEDialog::Remove* erase_dialog=NULL;
+MusEDialog::DelOverlaps* del_overlaps_dialog=NULL;
+MusEDialog::Setlen* set_notelen_dialog=NULL;
+MusEDialog::Move* move_notes_dialog=NULL;
+MusEDialog::Transpose* transpose_dialog=NULL;
+MusEDialog::Crescendo* crescendo_dialog=NULL;
+MusEDialog::Legato* legato_dialog=NULL;
 
 void init_function_dialogs(QWidget* parent)
 {
-	gatetime_dialog = new GateTime(parent);
-	velocity_dialog = new Velocity(parent);
-	quantize_dialog = new Quantize(parent);
-	erase_dialog = new Remove(parent);
-	del_overlaps_dialog = new DelOverlaps(parent);
-	set_notelen_dialog = new Setlen(parent);
-	move_notes_dialog = new Move(parent);
-	transpose_dialog = new Transpose(parent);
-	crescendo_dialog = new Crescendo(parent);
-	legato_dialog = new Legato(parent);
+	gatetime_dialog = new MusEDialog::GateTime(parent);
+	velocity_dialog = new MusEDialog::Velocity(parent);
+	quantize_dialog = new MusEDialog::Quantize(parent);
+	erase_dialog = new MusEDialog::Remove(parent);
+	del_overlaps_dialog = new MusEDialog::DelOverlaps(parent);
+	set_notelen_dialog = new MusEDialog::Setlen(parent);
+	move_notes_dialog = new MusEDialog::Move(parent);
+	transpose_dialog = new MusEDialog::Transpose(parent);
+	crescendo_dialog = new MusEDialog::Crescendo(parent);
+	legato_dialog = new MusEDialog::Legato(parent);
 }
 
 set<Part*> partlist_to_set(PartList* pl)
diff --git a/muse2/muse/functions.h b/muse2/muse/functions.h
index 04b95b0f..6a74b21d 100644
--- a/muse2/muse/functions.h
+++ b/muse2/muse/functions.h
@@ -41,16 +41,17 @@ class QString;
 class QMimeData;
 class Undo;
 
-extern GateTime* gatetime_dialog;
-extern Velocity* velocity_dialog;
-extern Quantize* quantize_dialog;
-extern Remove* erase_dialog;
-extern DelOverlaps* del_overlaps_dialog;
-extern Setlen* set_notelen_dialog;
-extern Move* move_notes_dialog;
-extern Transpose* transpose_dialog;
-extern Crescendo* crescendo_dialog;
-extern Legato* legato_dialog;
+extern MusEDialog::GateTime* gatetime_dialog;
+extern MusEDialog::Velocity* velocity_dialog;
+extern MusEDialog::Quantize* quantize_dialog;
+extern MusEDialog::Remove* erase_dialog;
+extern MusEDialog::DelOverlaps* del_overlaps_dialog;
+extern MusEDialog::Setlen* set_notelen_dialog;
+extern MusEDialog::Move* move_notes_dialog;
+extern MusEDialog::Transpose* transpose_dialog;
+extern MusEDialog::Crescendo* crescendo_dialog;
+extern MusEDialog::Legato* legato_dialog;
+
 
 void init_function_dialogs(QWidget* parent);
 
diff --git a/muse2/muse/importmidi.cpp b/muse2/muse/importmidi.cpp
index abf64fe2..c7c02253 100644
--- a/muse2/muse/importmidi.cpp
+++ b/muse2/muse/importmidi.cpp
@@ -70,7 +70,7 @@ void MusE::importMidi(const QString &file)
       {
       QString fn;
       if (file.isEmpty()) {
-               fn = getOpenFileName(MusEGlobal::lastMidiPath, MusEGlobal::midi_file_pattern, this,
+               fn = MusEWidget::getOpenFileName(MusEGlobal::lastMidiPath, MusEGlobal::midi_file_pattern, this,
                tr("MusE: Import Midi"), 0);
             if (fn.isEmpty())
                   return;
@@ -106,7 +106,7 @@ void MusE::importMidi(const QString &file)
 bool MusE::importMidi(const QString name, bool merge)
       {
       bool popenFlag;
-      FILE* fp = fileOpen(this, name, QString(".mid"), "r", popenFlag);
+      FILE* fp = MusEWidget::fileOpen(this, name, QString(".mid"), "r", popenFlag);
       if (fp == 0)
             return true;
       MidiFile mf(fp);
@@ -479,7 +479,7 @@ void MusE::importPart()
 
       if (track) {
             bool loadAll;
-            QString filename = getOpenFileName(QString(""), MusEGlobal::part_file_pattern, this, tr("MusE: load part"), &loadAll);
+            QString filename = MusEWidget::getOpenFileName(QString(""), MusEGlobal::part_file_pattern, this, tr("MusE: load part"), &loadAll);
             if (!filename.isEmpty()){
                   // Make a backup of the current clone list, to retain any 'copy' items,
                   //  so that pasting works properly after.
@@ -509,7 +509,7 @@ void MusE::importPartToTrack(QString& filename, unsigned tick, Track* track)
       // Changed by T356
       /*
       bool popenFlag = false;
-      FILE* fp = fileOpen(this, filename, ".mpt", "r", popenFlag, false, false);
+      FILE* fp = MusEWidget::fileOpen(this, filename, ".mpt", "r", popenFlag, false, false);
 
       if(fp) 
       {
@@ -548,7 +548,7 @@ void MusE::importPartToTrack(QString& filename, unsigned tick, Track* track)
         
       
       bool popenFlag = false;
-      FILE* fp = fileOpen(this, filename, ".mpt", "r", popenFlag, false, false);
+      FILE* fp = MusEWidget::fileOpen(this, filename, ".mpt", "r", popenFlag, false, false);
 
       if(fp) 
       {
diff --git a/muse2/muse/instruments/minstrument.cpp b/muse2/muse/instruments/minstrument.cpp
index 299f76bb..dfdf94c6 100644
--- a/muse2/muse/instruments/minstrument.cpp
+++ b/muse2/muse/instruments/minstrument.cpp
@@ -934,7 +934,7 @@ QString MidiInstrument::getPatchName(int channel, int prog, MType mode, bool dru
 //   populatePatchPopup
 //---------------------------------------------------------
 
-void MidiInstrument::populatePatchPopup(PopupMenu* menu, int chan, MType songType, bool drum)
+void MidiInstrument::populatePatchPopup(MusEWidget::PopupMenu* menu, int chan, MType songType, bool drum)
       {
       menu->clear();
       int mask = 0;
@@ -959,7 +959,7 @@ void MidiInstrument::populatePatchPopup(PopupMenu* menu, int chan, MType songTyp
             for (ciPatchGroup i = pg.begin(); i != pg.end(); ++i) {
                   PatchGroup* pgp = *i;
                   //QMenu* pm = menu->addMenu(pgp->name);
-                  PopupMenu* pm = new PopupMenu(pgp->name, menu, menu->stayOpen());  // Use the parent stayOpen here.
+                  MusEWidget::PopupMenu* pm = new MusEWidget::PopupMenu(pgp->name, menu, menu->stayOpen());  // Use the parent stayOpen here.
                   menu->addMenu(pm);
                   pm->setFont(MusEConfig::config.fonts[0]);
                   const PatchList& pl = pgp->patches;
diff --git a/muse2/muse/instruments/minstrument.h b/muse2/muse/instruments/minstrument.h
index 640351f8..e7800eea 100644
--- a/muse2/muse/instruments/minstrument.h
+++ b/muse2/muse/instruments/minstrument.h
@@ -28,14 +28,17 @@
 #include <list>
 #include <vector>
 
+class QString;
+
 class MidiPort;
-//class QMenu;
-class PopupMenu;
 class MidiPlayEvent;
 class Xml;
 class EventList;
 class MidiControllerList;
-class QString;
+
+namespace MusEWidget {
+class PopupMenu;
+}
 
 //---------------------------------------------------------
 //   Patch
@@ -138,7 +141,7 @@ class MidiInstrument {
       virtual void reset(int, MType);
       virtual QString getPatchName(int,int,MType,bool);
       //virtual void populatePatchPopup(QMenu*, int, MType, bool);
-      virtual void populatePatchPopup(PopupMenu*, int, MType, bool);
+      virtual void populatePatchPopup(MusEWidget::PopupMenu*, int, MType, bool);
       void read(Xml&);
       void write(int level, Xml&);
       
diff --git a/muse2/muse/liste/editevent.cpp b/muse2/muse/liste/editevent.cpp
index 0da0bbcb..e211e7f7 100644
--- a/muse2/muse/liste/editevent.cpp
+++ b/muse2/muse/liste/editevent.cpp
@@ -312,7 +312,7 @@ EditMetaDialog::EditMetaDialog(int tick, const Event& ev,
       epos = new Awl::PosEdit;
 
       QLabel* l2 = new QLabel(tr("Meta Type"));
-      il2 = new IntLabel(-1, 0, 127, this, -1);
+      il2 = new MusEWidget::IntLabel(-1, 0, 127, this, -1);
       il2->setFixedWidth(100);
       il2->setFrame(true);
       il2->setDark();
@@ -447,7 +447,7 @@ EditCAfterDialog::EditCAfterDialog(int tick, const Event& event,
       epos = new Awl::PosEdit;
 
       QLabel* l2 = new QLabel(tr("Pressure"));
-      il2  = new IntLabel(-1, 0, 127, this, -1);
+      il2  = new MusEWidget::IntLabel(-1, 0, 127, this, -1);
       il2->setFrame(true);
       il2->setDark();
 
@@ -506,9 +506,9 @@ EditPAfterDialog::EditPAfterDialog(int tick, const Event& event,
       epos = new Awl::PosEdit;
 
       QLabel* l2 = new QLabel(tr("Pitch"));
-      pl = new PitchEdit;
+      pl = new MusEWidget::PitchEdit;
       QLabel* l3 = new QLabel(tr("Pressure"));
-      il2  = new IntLabel(-1, 0, 127, this, -1);
+      il2  = new MusEWidget::IntLabel(-1, 0, 127, this, -1);
       il2->setFrame(true);
       il2->setDark();
 
@@ -696,7 +696,7 @@ EditCtrlDialog::EditCtrlDialog(int tick, const Event& event,
 void EditCtrlDialog::newController()
       {
       //QMenu* pup = new QMenu(this);
-      PopupMenu* pup = new PopupMenu(this);
+      MusEWidget::PopupMenu* pup = new MusEWidget::PopupMenu(this);
       //pup->setCheckable(this);//not necessary in Qt4
       //
       // populate popup with all controllers available for
@@ -871,7 +871,7 @@ void EditCtrlDialog::instrPopup()
       
       ///instr->populatePatchPopup(pop, channel, song->mtype(), track->type() == Track::DRUM);
       //QMenu* pup = new QMenu(this);
-      PopupMenu* pup = new PopupMenu(this);
+      MusEWidget::PopupMenu* pup = new MusEWidget::PopupMenu(this);
       instr->populatePatchPopup(pup, channel, song->mtype(), track->type() == Track::DRUM);
 
       ///if(pop->actions().count() == 0)
diff --git a/muse2/muse/liste/editevent.h b/muse2/muse/liste/editevent.h
index 454d81bc..02befe7e 100644
--- a/muse2/muse/liste/editevent.h
+++ b/muse2/muse/liste/editevent.h
@@ -33,8 +33,11 @@ namespace Awl {
       };
 
 ///class PosEdit;
+namespace MusEWidget {
 class IntLabel;
 class PitchEdit;
+}
+
 class QDialog;
 class QLabel;
 class QGridLayout;
@@ -143,7 +146,7 @@ class EditMetaDialog : public EditEventDialog {
       ///PosEdit* epos;
       Awl::PosEdit* epos;
       QTextEdit* edit;
-      IntLabel* il2;
+      MusEWidget::IntLabel* il2;
       QRadioButton* hexButton;
       QLabel* typeLabel;
 
@@ -173,7 +176,7 @@ class EditCAfterDialog : public EditEventDialog {
 
       ///PosEdit* epos;
       Awl::PosEdit* epos;
-      IntLabel* il2;
+      MusEWidget::IntLabel* il2;
 
    protected:
       QGridLayout* layout;
@@ -195,8 +198,8 @@ class EditPAfterDialog : public EditEventDialog {
 
       ///PosEdit* epos;
       Awl::PosEdit* epos;
-      PitchEdit* pl;
-      IntLabel* il2;
+      MusEWidget::PitchEdit* pl;
+      MusEWidget::IntLabel* il2;
 
    protected:
       QGridLayout* layout;
diff --git a/muse2/muse/liste/listedit.cpp b/muse2/muse/liste/listedit.cpp
index cfc7132f..37989ca9 100644
--- a/muse2/muse/liste/listedit.cpp
+++ b/muse2/muse/liste/listedit.cpp
@@ -381,7 +381,7 @@ QString EventListItem::text(int col) const
                   break;
             case 4:
                   if (event.isNote() || event.type() == PAfter)
-                        s = pitch2string(event.dataA());
+                        s =  pitch2string(event.dataA());
                   else if (event.type() == Controller)
                         s.setNum(event.dataA() & 0xffff);  // mask off type bits
                   else
diff --git a/muse2/muse/master/master.h b/muse2/muse/master/master.h
index 9cdbf6cc..4f181755 100644
--- a/muse2/muse/master/master.h
+++ b/muse2/muse/master/master.h
@@ -40,7 +40,7 @@ class ScrollScale;
 //   Master
 //---------------------------------------------------------
 
-class Master : public View {
+class Master : public MusEWidget::View {
       Q_OBJECT
       enum DragMode { DRAG_OFF, DRAG_NEW, DRAG_MOVE_START, DRAG_MOVE,
             DRAG_DELETE, DRAG_COPY_START, DRAG_COPY,
diff --git a/muse2/muse/master/masteredit.cpp b/muse2/muse/master/masteredit.cpp
index 3e400399..1a737476 100644
--- a/muse2/muse/master/masteredit.cpp
+++ b/muse2/muse/master/masteredit.cpp
@@ -137,11 +137,11 @@ MasterEdit::MasterEdit()
       label->setIndent(3);
       info->addWidget(label);
 
-      cursorPos = new PosLabel(0);
+      cursorPos = new MusEWidget::PosLabel(0);
       cursorPos->setFixedHeight(22);
       cursorPos->setToolTip(tr("time at cursor position"));
       info->addWidget(cursorPos);
-      tempo = new TempoLabel(0);
+      tempo = new MusEWidget::TempoLabel(0);
       tempo->setFixedHeight(22);
       tempo->setToolTip(tr("tempo at cursor position"));
       info->addWidget(tempo);
@@ -149,7 +149,7 @@ MasterEdit::MasterEdit()
       const char* rastval[] = {
             QT_TRANSLATE_NOOP("@default", "Off"), "Bar", "1/2", "1/4", "1/8", "1/16"
             };
-      rasterLabel = new LabelCombo(tr("Snap"), 0);
+      rasterLabel = new MusEWidget::LabelCombo(tr("Snap"), 0);
       rasterLabel->setFocusPolicy(Qt::NoFocus);
       for (int i = 0; i < 6; i++)
             rasterLabel->insertItem(i, tr(rastval[i]));
@@ -159,7 +159,7 @@ MasterEdit::MasterEdit()
 
       //---------values for current position---------------
       info->addWidget(new QLabel(tr("CurPos ")));
-      curTempo = new TempoEdit(0);
+      curTempo = new MusEWidget::TempoEdit(0);
       curSig   = new SigEdit(0);
       curSig->setValue(AL::TimeSignature(4, 4));
       curTempo->setToolTip(tr("tempo at current position"));
@@ -178,17 +178,17 @@ MasterEdit::MasterEdit()
 
       int xscale = -20;
       int yscale = -500;
-      hscroll   = new ScrollScale(-100, -2, xscale, song->len(), Qt::Horizontal, mainw);
-      vscroll   = new ScrollScale(-1000, -100, yscale, 120000, Qt::Vertical, mainw);
+      hscroll   = new MusEWidget::ScrollScale(-100, -2, xscale, song->len(), Qt::Horizontal, mainw);
+      vscroll   = new MusEWidget::ScrollScale(-1000, -100, yscale, 120000, Qt::Vertical, mainw);
       vscroll->setRange(30000, 250000);
-      time1     = new MTScale(&_raster, mainw, xscale);
-      sign      = new SigScale(&_raster, mainw, xscale);
-//      thits     = new HitScale(&_raster, mainw, xscale);
+      time1     = new MusEWidget::MTScale(&_raster, mainw, xscale);
+      sign      = new MusEWidget::SigScale(&_raster, mainw, xscale);
+//      thits     = new MusEWidget::HitScale(&_raster, mainw, xscale);
 
       canvas    = new Master(this, mainw, xscale, yscale);
 
-//      zhits     = new HitScale(&_raster, mainw, xscale);
-      time2     = new MTScale(&_raster, mainw, xscale);
+//      zhits     = new MusEWidget::HitScale(&_raster, mainw, xscale);
+      time2     = new MusEWidget::MTScale(&_raster, mainw, xscale);
       tscale    = new TScale(mainw, yscale);
       time2->setBarLocator(true);
 
@@ -201,18 +201,18 @@ MasterEdit::MasterEdit()
       mainGrid->setRowStretch(5, 100);
       mainGrid->setColumnStretch(1, 100);
 
-      mainGrid->addWidget(hLine(mainw),  0, 1);
+      mainGrid->addWidget(MusEUtil::hLine(mainw),  0, 1);
       mainGrid->addWidget(time1,         1, 1);
-      mainGrid->addWidget(hLine(mainw),  2, 1);
+      mainGrid->addWidget(MusEUtil::hLine(mainw),  2, 1);
       mainGrid->addWidget(sign,          3, 1);
-      mainGrid->addWidget(hLine(mainw),  4, 1);
+      mainGrid->addWidget(MusEUtil::hLine(mainw),  4, 1);
 //    mainGrid->addWidget(thits,         5, 1);
-//    mainGrid->addWidget(hLine(mainw),  6, 1);
+//    mainGrid->addWidget(MusEUtil::hLine(mainw),  6, 1);
       mainGrid->addWidget(canvas,        5, 1);
       mainGrid->addWidget(tscale,        5, 0);
-      mainGrid->addWidget(hLine(mainw),  6, 1);
+      mainGrid->addWidget(MusEUtil::hLine(mainw),  6, 1);
 //    mainGrid->addWidget(zhits,         9, 1);
-//    mainGrid->addWidget(hLine(mainw),  7, 1);
+//    mainGrid->addWidget(MusEUtil::hLine(mainw),  7, 1);
       mainGrid->addWidget(time2,         7, 1);
       mainGrid->addWidget(hscroll,       8, 1);
       mainGrid->addWidget(vscroll, 0, 2, 10, 1);
diff --git a/muse2/muse/master/masteredit.h b/muse2/muse/master/masteredit.h
index 311bedbf..c4846f78 100644
--- a/muse2/muse/master/masteredit.h
+++ b/muse2/muse/master/masteredit.h
@@ -40,15 +40,18 @@ class QToolBar;
 class QToolButton;
 
 class Master;
-class ScrollScale;
-class MTScale;
-class SigScale;
-class HitScale;
 class TScale;
-class TempoEdit;
+
+namespace MusEWidget {
+class HitScale;
 class LabelCombo;
+class MTScale;
 class PosLabel;
+class ScrollScale;
+class SigScale;
+class TempoEdit;
 class TempoLabel;
+}
 
 //---------------------------------------------------------
 //   MasterEdit
@@ -58,21 +61,21 @@ class MasterEdit : public MidiEditor {
       Q_OBJECT
     
       Master* canvas;
-      ScrollScale* hscroll;
-      ScrollScale* vscroll;
-      MTScale* time1;
-      MTScale* time2;
-      SigScale* sign;
-      HitScale* thits;
-      HitScale* zhits;
+      MusEWidget::ScrollScale* hscroll;
+      MusEWidget::ScrollScale* vscroll;
+      MusEWidget::MTScale* time1;
+      MusEWidget::MTScale* time2;
+      MusEWidget::SigScale* sign;
+      MusEWidget::HitScale* thits;
+      MusEWidget::HitScale* zhits;
       TScale* tscale;
 
-      TempoEdit* curTempo;
+      MusEWidget::TempoEdit* curTempo;
       SigEdit* curSig;
-      LabelCombo* rasterLabel;
+      MusEWidget::LabelCombo* rasterLabel;
       QToolBar* tools;
-      PosLabel* cursorPos;
-      TempoLabel* tempo;
+      MusEWidget::PosLabel* cursorPos;
+      MusEWidget::TempoLabel* tempo;
       QToolButton* enableButton;
       
       static int _rasterInit;
diff --git a/muse2/muse/master/tscale.h b/muse2/muse/master/tscale.h
index 19aacae9..2c03839f 100644
--- a/muse2/muse/master/tscale.h
+++ b/muse2/muse/master/tscale.h
@@ -29,7 +29,7 @@
 //   Tscale
 //---------------------------------------------------------
 
-class TScale : public View {
+class TScale : public MusEWidget::View {
       Q_OBJECT
         
       double curTempo;
diff --git a/muse2/muse/midiedit/dcanvas.cpp b/muse2/muse/midiedit/dcanvas.cpp
index da8bb884..11d8958e 100644
--- a/muse2/muse/midiedit/dcanvas.cpp
+++ b/muse2/muse/midiedit/dcanvas.cpp
@@ -115,7 +115,7 @@ DrumCanvas::DrumCanvas(MidiEditor* pr, QWidget* parent, int sx,
 //   moveCanvasItems
 //---------------------------------------------------------
 
-Undo DrumCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtype)
+Undo DrumCanvas::moveCanvasItems(MusEWidget::CItemList& items, int dp, int dx, DragType dtype)
 {      
   if(editor->parts()->empty())
     return Undo(); //return empty list
@@ -130,9 +130,9 @@ Undo DrumCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtyp
       continue;
     
     int npartoffset = 0;
-    for(iCItem ici = items.begin(); ici != items.end(); ++ici) 
+    for(MusEWidget::iCItem ici = items.begin(); ici != items.end(); ++ici) 
     {
-      CItem* ci = ici->second;
+      MusEWidget::CItem* ci = ici->second;
       if(ci->part() != part)
         continue;
       
@@ -185,12 +185,12 @@ Undo DrumCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtyp
 	
 	if (!forbidden)
 	{
-		std::vector< CItem* > doneList;
-		typedef std::vector< CItem* >::iterator iDoneList;
+	        std::vector< MusEWidget::CItem* > doneList;
+		typedef std::vector< MusEWidget::CItem* >::iterator iDoneList;
 		
-		for(iCItem ici = items.begin(); ici != items.end(); ++ici) 
+		for(MusEWidget::iCItem ici = items.begin(); ici != items.end(); ++ici) 
 		{
-			CItem* ci = ici->second;
+		        MusEWidget::CItem* ci = ici->second;
 			
 			int x = ci->pos().x();
 			int y = ci->pos().y();
@@ -240,7 +240,7 @@ Undo DrumCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtyp
 //   moveItem
 //---------------------------------------------------------
 
-UndoOp DrumCanvas::moveItem(CItem* item, const QPoint& pos, DragType dtype)
+UndoOp DrumCanvas::moveItem(MusEWidget::CItem* item, const QPoint& pos, DragType dtype)
       {
       DEvent* nevent   = (DEvent*) item;
       
@@ -274,7 +274,7 @@ UndoOp DrumCanvas::moveItem(CItem* item, const QPoint& pos, DragType dtype)
 //   newItem
 //---------------------------------------------------------
 
-CItem* DrumCanvas::newItem(const QPoint& p, int state)
+MusEWidget::CItem* DrumCanvas::newItem(const QPoint& p, int state)
       {
       int instr = y2pitch(p.y());         //drumInmap[y2pitch(p.y())];
       int velo  = drumMap[instr].lv4;
@@ -292,7 +292,7 @@ CItem* DrumCanvas::newItem(const QPoint& p, int state)
 //   newItem
 //---------------------------------------------------------
 
-CItem* DrumCanvas::newItem(int tick, int instrument, int velocity)
+MusEWidget::CItem* DrumCanvas::newItem(int tick, int instrument, int velocity)
 {
   tick    -= curPart->tick();
   Event e(Note);
@@ -307,7 +307,7 @@ CItem* DrumCanvas::newItem(int tick, int instrument, int velocity)
 //   resizeItem
 //---------------------------------------------------------
 
-void DrumCanvas::resizeItem(CItem* item, bool, bool)
+void DrumCanvas::resizeItem(MusEWidget::CItem* item, bool, bool)
       {
       DEvent* nevent = (DEvent*) item;
       Event ev = nevent->event();
@@ -318,11 +318,11 @@ void DrumCanvas::resizeItem(CItem* item, bool, bool)
 //---------------------------------------------------------
 //   newItem
 //---------------------------------------------------------
-void DrumCanvas::newItem(CItem* item, bool noSnap) {
+void DrumCanvas::newItem(MusEWidget::CItem* item, bool noSnap) {
      newItem(item, noSnap,false);
 }
 
-void DrumCanvas::newItem(CItem* item, bool noSnap, bool replace)
+void DrumCanvas::newItem(MusEWidget::CItem* item, bool noSnap, bool replace)
       {
       DEvent* nevent = (DEvent*) item;
       Event event    = nevent->event();
@@ -383,7 +383,7 @@ void DrumCanvas::newItem(CItem* item, bool noSnap, bool replace)
 //   deleteItem
 //---------------------------------------------------------
 
-bool DrumCanvas::deleteItem(CItem* item)
+bool DrumCanvas::deleteItem(MusEWidget::CItem* item)
       {
       Event ev = ((DEvent*)item)->event();
       // Indicate do undo, and do not do port controller values and clone parts. 
@@ -395,7 +395,7 @@ bool DrumCanvas::deleteItem(CItem* item)
 //   drawItem
 //---------------------------------------------------------
 
-void DrumCanvas::drawItem(QPainter&p, const CItem*item, const QRect& rect)
+void DrumCanvas::drawItem(QPainter&p, const MusEWidget::CItem*item, const QRect& rect)
       {
       DEvent* e   = (DEvent*) item;
       int x = 0, y = 0;
@@ -453,7 +453,7 @@ void DrumCanvas::drawItem(QPainter&p, const CItem*item, const QRect& rect)
 //    draws moving items
 //---------------------------------------------------------
 
-void DrumCanvas::drawMoving(QPainter& p, const CItem* item, const QRect& rect)
+void DrumCanvas::drawMoving(QPainter& p, const MusEWidget::CItem* item, const QRect& rect)
     {
       QPolygon pa(4);
       QPoint pt = map(item->mp());
@@ -545,7 +545,7 @@ void DrumCanvas::cmd(int cmd)
       {
       switch (cmd) {
             case CMD_SELECT_ALL:     // select all
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         if (!k->second->isSelected())
                               selectItem(k->second, true);
                         }
@@ -554,12 +554,12 @@ void DrumCanvas::cmd(int cmd)
                   deselectAll();
                   break;
             case CMD_SELECT_INVERT:     // invert selection
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         selectItem(k->second, !k->second->isSelected());
                         }
                   break;
             case CMD_SELECT_ILOOP:     // select inside loop
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         DEvent* nevent =(DEvent*)(k->second);
                         Part* part = nevent->part();
                         Event event = nevent->event();
@@ -571,7 +571,7 @@ void DrumCanvas::cmd(int cmd)
                         }
                   break;
             case CMD_SELECT_OLOOP:     // select outside loop
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         DEvent* nevent = (DEvent*)(k->second);
                         Part* part     = nevent->part();
                         Event event    = nevent->event();
@@ -628,7 +628,7 @@ void DrumCanvas::cmd(int cmd)
                   if (!selectionSize())
                         break;
                   song->startUndo();
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         if (k->second->isSelected()) {
                               DEvent* devent = (DEvent*)(k->second);
                               Event event    = devent->event();
@@ -687,7 +687,7 @@ void DrumCanvas::cmd(int cmd)
 //   startDrag
 //---------------------------------------------------------
 
-void DrumCanvas::startDrag(CItem* /* item*/, bool copymode)
+void DrumCanvas::startDrag(MusEWidget::CItem* /* item*/, bool copymode)
       {
       QMimeData* md = selected_events_to_mime(partlist_to_set(editor->parts()), 1);
       
@@ -868,11 +868,11 @@ void DrumCanvas::resizeEvent(QResizeEvent* ev)
 //   modifySelected
 //---------------------------------------------------------
 
-void DrumCanvas::modifySelected(NoteInfo::ValType type, int delta)
+void DrumCanvas::modifySelected(MusEWidget::NoteInfo::ValType type, int delta)
       {
       audio->msgIdle(true);
       song->startUndo();
-      for (iCItem i = items.begin(); i != items.end(); ++i) {
+      for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
             if (!(i->second->isSelected()))
                   continue;
             DEvent* e   = (DEvent*)(i->second);
@@ -884,7 +884,7 @@ void DrumCanvas::modifySelected(NoteInfo::ValType type, int delta)
             Event newEvent = event.clone();
 
             switch (type) {
-                  case NoteInfo::VAL_TIME:
+                  case MusEWidget::NoteInfo::VAL_TIME:
                         {
                         int newTime = event.tick() + delta;
                         if (newTime < 0)
@@ -892,16 +892,16 @@ void DrumCanvas::modifySelected(NoteInfo::ValType type, int delta)
                         newEvent.setTick(newTime);
                         }
                         break;
-                  case NoteInfo::VAL_LEN:
-                        printf("DrumCanvas::modifySelected - NoteInfo::VAL_LEN not implemented\n");
+                  case MusEWidget::NoteInfo::VAL_LEN:
+                        printf("DrumCanvas::modifySelected - MusEWidget::NoteInfo::VAL_LEN not implemented\n");
                         break;
-                  case NoteInfo::VAL_VELON:
-                        printf("DrumCanvas::modifySelected - NoteInfo::VAL_VELON not implemented\n");
+                  case MusEWidget::NoteInfo::VAL_VELON:
+                        printf("DrumCanvas::modifySelected - MusEWidget::NoteInfo::VAL_VELON not implemented\n");
                         break;
-                  case NoteInfo::VAL_VELOFF:
-                        printf("DrumCanvas::modifySelected - NoteInfo::VAL_VELOFF not implemented\n");
+                  case MusEWidget::NoteInfo::VAL_VELOFF:
+                        printf("DrumCanvas::modifySelected - MusEWidget::NoteInfo::VAL_VELOFF not implemented\n");
                         break;
-                  case NoteInfo::VAL_PITCH:
+                  case MusEWidget::NoteInfo::VAL_PITCH:
                         {
                         int pitch = event.pitch() - delta; // Reversing order since the drumlist is displayed in increasing order
                         if (pitch > 127)
@@ -1084,7 +1084,7 @@ Event *DrumCanvas::getEventAtCursorPos()
 //---------------------------------------------------------
 void DrumCanvas::selectCursorEvent(Event *ev)
 {
-  for (iCItem i = items.begin(); i != items.end(); ++i)
+  for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i)
   {
         Event e = i->second->event();
 
@@ -1103,7 +1103,7 @@ void DrumCanvas::moveAwayUnused()
 	using std::set;
 	
 	set<int> used;
-	for (iCItem it=items.begin(); it!=items.end(); it++)
+	for (MusEWidget::iCItem it=items.begin(); it!=items.end(); it++)
 	{
 		const Event& ev=it->second->event();
 		
diff --git a/muse2/muse/midiedit/dcanvas.h b/muse2/muse/midiedit/dcanvas.h
index 5d308426..0256de01 100644
--- a/muse2/muse/midiedit/dcanvas.h
+++ b/muse2/muse/midiedit/dcanvas.h
@@ -43,7 +43,7 @@ class MidiEditor;
 //    ''visual'' Drum Event
 //---------------------------------------------------------
 
-class DEvent : public CItem {
+class DEvent : public MusEWidget::CItem {
    public:
       DEvent(Event e, Part* p);
       };
@@ -66,21 +66,21 @@ class DrumCanvas : public EventCanvas {
 
       
       virtual void drawCanvas(QPainter&, const QRect&);
-      virtual void drawItem(QPainter&, const CItem*, const QRect&);
+      virtual void drawItem(QPainter&, const MusEWidget::CItem*, const QRect&);
       void drawTopItem(QPainter& p, const QRect& rect);
-      virtual void drawMoving(QPainter&, const CItem*, const QRect&);
-      virtual Undo moveCanvasItems(CItemList&, int, int, DragType);
-      virtual UndoOp moveItem(CItem*, const QPoint&, DragType);
-      virtual CItem* newItem(const QPoint&, int);
-      virtual void resizeItem(CItem*, bool, bool);
-      virtual void newItem(CItem*, bool);
-      virtual void newItem(CItem*, bool, bool replace );
-      virtual bool deleteItem(CItem*);
-      CItem* newItem(int tick, int instrument, int velocity);
+      virtual void drawMoving(QPainter&, const MusEWidget::CItem*, const QRect&);
+      virtual Undo moveCanvasItems(MusEWidget::CItemList&, int, int, DragType);
+      virtual UndoOp moveItem(MusEWidget::CItem*, const QPoint&, DragType);
+      virtual MusEWidget::CItem* newItem(const QPoint&, int);
+      virtual void resizeItem(MusEWidget::CItem*, bool, bool);
+      virtual void newItem(MusEWidget::CItem*, bool);
+      virtual void newItem(MusEWidget::CItem*, bool, bool replace );
+      virtual bool deleteItem(MusEWidget::CItem*);
+      MusEWidget::CItem* newItem(int tick, int instrument, int velocity);
 
       int y2pitch(int y) const;
       int pitch2y(int pitch) const;
-      void startDrag(CItem*, bool copymode);
+      void startDrag(MusEWidget::CItem*, bool copymode);
       void dragEnterEvent(QDragEnterEvent* event);
       void dragMoveEvent(QDragMoveEvent*);
       void dragLeaveEvent(QDragLeaveEvent*);
@@ -115,7 +115,7 @@ class DrumCanvas : public EventCanvas {
       DrumCanvas(MidiEditor*, QWidget*, int, int,
          const char* name = 0);
       void cmd(int);
-      virtual void modifySelected(NoteInfo::ValType type, int delta);
+      virtual void modifySelected(MusEWidget::NoteInfo::ValType type, int delta);
       virtual void keyPress(QKeyEvent* event);
       Event *getEventAtCursorPos();
       void selectCursorEvent(Event *ev);
diff --git a/muse2/muse/midiedit/dlist.cpp b/muse2/muse/midiedit/dlist.cpp
index ee563edd..165bb4cb 100644
--- a/muse2/muse/midiedit/dlist.cpp
+++ b/muse2/muse/midiedit/dlist.cpp
@@ -90,10 +90,10 @@ void DList::draw(QPainter& p, const QRect& rect)
                               s.setNum(dm->len);
                               break;
                         case COL_ANOTE:
-                              s = pitch2string(dm->anote);
+                              s =  pitch2string(dm->anote);
                               break;
                         case COL_ENOTE:
-                              s = pitch2string(dm->enote);
+                              s =  pitch2string(dm->enote);
                               break;
                         case COL_LV1:
                               s.setNum(dm->lv1);
@@ -739,7 +739,7 @@ void DList::songChanged(int flags)
 //---------------------------------------------------------
 
 DList::DList(QHeaderView* h, QWidget* parent, int ymag)
-   : View(parent, 1, ymag)
+   : MusEWidget::View(parent, 1, ymag)
       {
       setBg(Qt::white);
       if (!h){
diff --git a/muse2/muse/midiedit/dlist.h b/muse2/muse/midiedit/dlist.h
index a622fbda..0fb1fd0b 100644
--- a/muse2/muse/midiedit/dlist.h
+++ b/muse2/muse/midiedit/dlist.h
@@ -84,7 +84,7 @@ class DPitchEdit: public Awl::PitchEdit
 //   DList
 //---------------------------------------------------------
 
-class DList : public View {
+class DList : public MusEWidget::View {
       Q_OBJECT
     
       QHeaderView* header;
diff --git a/muse2/muse/midiedit/drumedit.cpp b/muse2/muse/midiedit/drumedit.cpp
index e7fafac4..e8997367 100644
--- a/muse2/muse/midiedit/drumedit.cpp
+++ b/muse2/muse/midiedit/drumedit.cpp
@@ -351,24 +351,24 @@ DrumEdit::DrumEdit(PartList* pl, QWidget* parent, const char* name, unsigned ini
       
       addToolBarBreak();
       // don't show pitch value in toolbar
-      toolbar = new Toolbar1(this, _rasterInit, false);
+      toolbar = new MusEWidget::Toolbar1(this, _rasterInit, false);
       addToolBar(toolbar);
       
       addToolBarBreak();
-      info    = new NoteInfo(this);
+      info    = new MusEWidget::NoteInfo(this);
       addToolBar(info);
 
       //---------------------------------------------------
       //    split
       //---------------------------------------------------
 
-      split1            = new Splitter(Qt::Vertical, mainw, "split1");
+      split1            = new MusEWidget::Splitter(Qt::Vertical, mainw, "split1");
       QPushButton* ctrl = new QPushButton(tr("ctrl"), mainw);
       ctrl->setObjectName("Ctrl");
       ctrl->setFont(MusEConfig::config.fonts[3]);
-      //hscroll           = new ScrollScale(-25, -2, xscale, 20000, Qt::Horizontal, mainw);
+      //hscroll           = new MusEWidget::ScrollScale(-25, -2, xscale, 20000, Qt::Horizontal, mainw);
       // Increased scale to -1. To resolve/select/edit 1-tick-wide (controller graph) events. p4.0.18 Tim.
-      hscroll           = new ScrollScale(-25, -1, xscale, 20000, Qt::Horizontal, mainw);
+      hscroll           = new MusEWidget::ScrollScale(-25, -1, xscale, 20000, Qt::Horizontal, mainw);
       ctrl->setFixedSize(40, hscroll->sizeHint().height());
       ctrl->setToolTip(tr("Add Controller View"));
 
@@ -385,7 +385,7 @@ DrumEdit::DrumEdit(PartList* pl, QWidget* parent, const char* name, unsigned ini
 //      mainGrid->addRowSpacing(1, hscroll->sizeHint().height());
 //      mainGrid->addItem(new QSpacerItem(0, hscroll->sizeHint().height()), 1, 0); 
 
-      split2              = new Splitter(Qt::Horizontal, split1, "split2");
+      split2              = new MusEWidget::Splitter(Qt::Horizontal, split1, "split2");
       split1w1            = new QWidget(split2);
       QWidget* split1w2   = new QWidget(split2);
       QGridLayout* gridS1 = new QGridLayout(split1w1);
@@ -394,9 +394,9 @@ DrumEdit::DrumEdit(PartList* pl, QWidget* parent, const char* name, unsigned ini
       gridS1->setSpacing(0);  
       gridS2->setContentsMargins(0, 0, 0, 0);
       gridS2->setSpacing(0);  
-      time                = new MTScale(&_raster, split1w2, xscale);
+      time                = new MusEWidget::MTScale(&_raster, split1w2, xscale);
       canvas              = new DrumCanvas(this, split1w2, xscale, yscale);
-      vscroll             = new ScrollScale(-4, 1, yscale, DRUM_MAPSIZE*TH, Qt::Vertical, split1w2);
+      vscroll             = new MusEWidget::ScrollScale(-4, 1, yscale, DRUM_MAPSIZE*TH, Qt::Vertical, split1w2);
       int offset = -(MusEConfig::config.division/4);
       canvas->setOrigin(offset, 0);
       canvas->setCanvasTools(drumeditTools);
@@ -412,20 +412,20 @@ DrumEdit::DrumEdit(PartList* pl, QWidget* parent, const char* name, unsigned ini
       split2->setSizes(mops);
       // By T356. Not much choice but to disable this for now, to stop runaway resize bug.
       // Can't seem to get the splitter to readjust when manually setting sizes.
-      //split2->setResizeMode(split1w1, QSplitter::KeepSize);
+      //split2->setResizeMode(split1w1, QMusEWidget::Splitter::KeepSize);
 
       gridS2->setRowStretch(1, 100);
       gridS2->setColumnStretch(0, 100);
       
       gridS2->addWidget(time,  0, 0, 1, 2);
-      gridS2->addWidget(hLine(split1w2), 1, 0, 1, 2);
+      gridS2->addWidget(MusEUtil::hLine(split1w2), 1, 0, 1, 2);
       gridS2->addWidget(canvas,  2, 0);
       
       gridS2->addWidget(vscroll, 2, 1);
       //
       //  Reihenfolge in dlist.c festgeschrieben ("Dcols")
       //
-      header = new Header(split1w1, "header");
+      header = new MusEWidget::Header(split1w1, "header");
       header->setFixedHeight(31);
       header->setColumnLabel(tr("M"), COL_MUTE, 20);
       header->setColumnLabel(tr("Sound"), COL_NAME, 120);
@@ -492,7 +492,7 @@ DrumEdit::DrumEdit(PartList* pl, QWidget* parent, const char* name, unsigned ini
       connect(time,    SIGNAL(timeChanged(unsigned)),  SLOT(setTime(unsigned)));
       connect(toolbar, SIGNAL(rasterChanged(int)),         SLOT(setRaster(int)));
       connect(toolbar, SIGNAL(soloChanged(bool)),          SLOT(soloChanged(bool)));
-      connect(info, SIGNAL(valueChanged(NoteInfo::ValType, int)), SLOT(noteinfoChanged(NoteInfo::ValType, int)));
+      connect(info, SIGNAL(valueChanged(MusEWidget::NoteInfo::ValType, int)), SLOT(noteinfoChanged(MusEWidget::NoteInfo::ValType, int)));
 
       connect(ctrl, SIGNAL(clicked()), SLOT(addCtrl()));
 
@@ -642,7 +642,7 @@ void DrumEdit::setRaster(int val)
 //    edit currently selected Event
 //---------------------------------------------------------
 
-void DrumEdit::noteinfoChanged(NoteInfo::ValType type, int val)
+void DrumEdit::noteinfoChanged(MusEWidget::NoteInfo::ValType type, int val)
       {
       if (selEvent.empty()) {
             printf("noteinfoChanged while note is zero %d\n", type);
@@ -650,19 +650,19 @@ void DrumEdit::noteinfoChanged(NoteInfo::ValType type, int val)
             }
       Event event = selEvent.clone();
       switch (type) {
-            case NoteInfo::VAL_TIME:
+            case MusEWidget::NoteInfo::VAL_TIME:
                   event.setTick(val - selPart->tick());
                   break;
-            case NoteInfo::VAL_LEN:
+            case MusEWidget::NoteInfo::VAL_LEN:
                   event.setLenTick(val);
                   break;
-            case NoteInfo::VAL_VELON:
+            case MusEWidget::NoteInfo::VAL_VELON:
                   event.setVelo(val);
                   break;
-            case NoteInfo::VAL_VELOFF:
+            case MusEWidget::NoteInfo::VAL_VELOFF:
                   event.setVeloOff(val);
                   break;
-            case NoteInfo::VAL_PITCH:
+            case MusEWidget::NoteInfo::VAL_PITCH:
                   event.setPitch(val);
                   break;
             }
@@ -820,13 +820,13 @@ void DrumEdit::writeConfiguration(int level, Xml& xml)
 
 void DrumEdit::load()
       {
-      //QString fn = getOpenFileName("drummaps", map_file_pattern,
-      QString fn = getOpenFileName("drummaps", MusEGlobal::drum_map_file_pattern,
+      //QString fn = MusEWidget::getOpenFileName("drummaps", map_file_pattern,
+      QString fn = MusEWidget::getOpenFileName("drummaps", MusEGlobal::drum_map_file_pattern,
          this, tr("Muse: Load Drum Map"), 0);
       if (fn.isEmpty())
             return;
       bool popenFlag;
-      FILE* f = fileOpen(this, fn, QString(".map"), "r", popenFlag, true);
+      FILE* f = MusEWidget::fileOpen(this, fn, QString(".map"), "r", popenFlag, true);
       if (f == 0)
             return;
 
@@ -873,13 +873,13 @@ ende:
 
 void DrumEdit::save()
       {
-      //QString fn = getSaveFileName(QString("drummaps"), map_file_pattern,
-      QString fn = getSaveFileName(QString("drummaps"), MusEGlobal::drum_map_file_save_pattern,
+      //QString fn = MusEWidget::getSaveFileName(QString("drummaps"), map_file_pattern,
+      QString fn = MusEWidget::getSaveFileName(QString("drummaps"), MusEGlobal::drum_map_file_save_pattern,
         this, tr("MusE: Store Drum Map"));
       if (fn.isEmpty())
             return;
       bool popenFlag;
-      FILE* f = fileOpen(this, fn, QString(".map"), "w", popenFlag, false, true);
+      FILE* f = MusEWidget::fileOpen(this, fn, QString(".map"), "w", popenFlag, false, true);
       if (f == 0)
             return;
       Xml xml(f);
@@ -1202,11 +1202,11 @@ void DrumEdit::keyPressEvent(QKeyEvent* event)
             }
       else if (key == shortcuts[SHRT_ZOOM_IN].key) {
             int mag = hscroll->mag();
-            int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+            int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
             if (zoomlvl < 23)
                   zoomlvl++;
 
-            int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+            int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
             hscroll->setMag(newmag);
             //printf("mag = %d zoomlvl = %d newmag = %d\n", mag, zoomlvl, newmag);
@@ -1214,11 +1214,11 @@ void DrumEdit::keyPressEvent(QKeyEvent* event)
             }
       else if (key == shortcuts[SHRT_ZOOM_OUT].key) {
             int mag = hscroll->mag();
-            int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+            int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
             if (zoomlvl > 1)
                   zoomlvl--;
 
-            int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+            int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
             hscroll->setMag(newmag);
             //printf("mag = %d zoomlvl = %d newmag = %d\n", mag, zoomlvl, newmag);
             return;
diff --git a/muse2/muse/midiedit/drumedit.h b/muse2/muse/midiedit/drumedit.h
index 3ca3df5d..d9812ebc 100644
--- a/muse2/muse/midiedit/drumedit.h
+++ b/muse2/muse/midiedit/drumedit.h
@@ -47,18 +47,20 @@ class MidiPart;
 class DrumCanvas;
 class ScrollScale;
 class ScoreConfig;
-class MTScale;
-class Splitter;
 class PartList;
-class Toolbar1;
 class CtrlCanvas;
 class Xml;
 class DList;
-class Header;
 class CtrlEdit;
 class Part;
 class SNode;
 
+namespace MusEWidget {
+class Header;
+class Splitter;
+class Toolbar1;
+}
+
 //---------------------------------------------------------
 //   DrumEdit
 //---------------------------------------------------------
@@ -71,17 +73,17 @@ class DrumEdit : public MidiEditor {
       int selTick;
       QMenu* menuEdit, *menuFunctions, *menuFile, *menuSelect;
 
-      NoteInfo* info;
+      MusEWidget::NoteInfo* info;
       QToolButton* srec;
       QToolButton* midiin;
       MusEWidget::EditToolBar* tools2;
 
-      Toolbar1* toolbar;
-      Splitter* split1;
-      Splitter* split2;
+      MusEWidget::Toolbar1* toolbar;
+      MusEWidget::Splitter* split1;
+      MusEWidget::Splitter* split2;
       QWidget* split1w1;
       DList* dlist;
-      Header* header;
+      MusEWidget::Header* header;
       QToolBar* tools;
       QComboBox *stepLenWidget;
 
@@ -112,7 +114,7 @@ class DrumEdit : public MidiEditor {
 
    private slots:
       void setRaster(int);
-      void noteinfoChanged(NoteInfo::ValType type, int val);
+      void noteinfoChanged(MusEWidget::NoteInfo::ValType type, int val);
       //CtrlEdit* addCtrl();
       void removeCtrl(CtrlEdit* ctrl);
       void cmd(int);
diff --git a/muse2/muse/midiedit/ecanvas.cpp b/muse2/muse/midiedit/ecanvas.cpp
index aaa62eba..e15256ac 100644
--- a/muse2/muse/midiedit/ecanvas.cpp
+++ b/muse2/muse/midiedit/ecanvas.cpp
@@ -182,10 +182,10 @@ void EventCanvas::songChanged(int flags)
       Event event;
       MidiPart* part   = 0;
       int x            = 0;
-      CItem*   nevent  = 0;
+      MusEWidget::CItem*   nevent  = 0;
 
       int n  = 0;       // count selections
-      for (iCItem k = items.begin(); k != items.end(); ++k) {
+      for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
             Event ev = k->second->event();
             bool selected = ev.selected();
             if (selected) {
@@ -224,11 +224,11 @@ void EventCanvas::selectAtTick(unsigned int tick)
       {
       //Select note nearest tick, if none selected and there are any
       if (!items.empty() && selectionSize() == 0) {
-            iCItem i = items.begin();
-            CItem* nearest = i->second;
+            MusEWidget::iCItem i = items.begin();
+	    MusEWidget::CItem* nearest = i->second;
 
             while (i != items.end()) {
-                CItem* cur=i->second;                
+                MusEWidget::CItem* cur=i->second;                
                 unsigned int curtk=abs(cur->x() + cur->part()->tick() - tick);
                 unsigned int neartk=abs(nearest->x() + nearest->part()->tick() - tick);
 
@@ -282,7 +282,7 @@ void EventCanvas::keyPress(QKeyEvent* event)
             int tick_min = INT_MAX;
             bool found = false;
 
-            for (iCItem i= items.begin(); i != items.end(); i++) {
+            for (MusEWidget::iCItem i= items.begin(); i != items.end(); i++) {
                   if (!i->second->isSelected())
                         continue;
 
@@ -303,8 +303,8 @@ void EventCanvas::keyPress(QKeyEvent* event)
             }
       // Select items by key (PianoRoll & DrumEditor)
       else if (key == shortcuts[SHRT_SEL_RIGHT].key || key == shortcuts[SHRT_SEL_RIGHT_ADD].key) {
-            iCItem i, iRightmost;
-            CItem* rightmost = NULL;
+            MusEWidget::iCItem i, iRightmost;
+	    MusEWidget::CItem* rightmost = NULL;
             //Get the rightmost selected note (if any)
             for (i = items.begin(); i != items.end(); ++i) {
                   if (i->second->isSelected()) {
@@ -312,7 +312,7 @@ void EventCanvas::keyPress(QKeyEvent* event)
                         }
                   }
                if (rightmost) {
-                     iCItem temp = iRightmost; temp++;
+                     MusEWidget::iCItem temp = iRightmost; temp++;
                      //If so, deselect current note and select the one to the right
                      if (temp != items.end()) {
                            if (key != shortcuts[SHRT_SEL_RIGHT_ADD].key)
@@ -329,8 +329,8 @@ void EventCanvas::keyPress(QKeyEvent* event)
             }
       //Select items by key: (PianoRoll & DrumEditor)
       else if (key == shortcuts[SHRT_SEL_LEFT].key || key == shortcuts[SHRT_SEL_LEFT_ADD].key) {
-            iCItem i, iLeftmost;
-            CItem* leftmost = NULL;
+            MusEWidget::iCItem i, iLeftmost;
+            MusEWidget::CItem* leftmost = NULL;
             if (items.size() > 0 ) {
                   for (i = items.end(), i--; i != items.begin(); i--) {
                         if (i->second->isSelected()) {
@@ -353,27 +353,27 @@ void EventCanvas::keyPress(QKeyEvent* event)
                   }
             }
       else if (key == shortcuts[SHRT_INC_PITCH].key) {
-            modifySelected(NoteInfo::VAL_PITCH, 1);
+            modifySelected(MusEWidget::NoteInfo::VAL_PITCH, 1);
             }
       else if (key == shortcuts[SHRT_DEC_PITCH].key) {
-            modifySelected(NoteInfo::VAL_PITCH, -1);
+            modifySelected(MusEWidget::NoteInfo::VAL_PITCH, -1);
             }
       else if (key == shortcuts[SHRT_INC_POS].key) {
             // TODO: Check boundaries
-            modifySelected(NoteInfo::VAL_TIME, editor->raster());
+            modifySelected(MusEWidget::NoteInfo::VAL_TIME, editor->raster());
             }
       else if (key == shortcuts[SHRT_DEC_POS].key) {
             // TODO: Check boundaries
-            modifySelected(NoteInfo::VAL_TIME, 0 - editor->raster());
+            modifySelected(MusEWidget::NoteInfo::VAL_TIME, 0 - editor->raster());
             }
 
       else if (key == shortcuts[SHRT_INCREASE_LEN].key) {
             // TODO: Check boundaries
-            modifySelected(NoteInfo::VAL_LEN, editor->raster());
+            modifySelected(MusEWidget::NoteInfo::VAL_LEN, editor->raster());
             }
       else if (key == shortcuts[SHRT_DECREASE_LEN].key) {
             // TODO: Check boundaries
-            modifySelected(NoteInfo::VAL_LEN, 0 - editor->raster());
+            modifySelected(MusEWidget::NoteInfo::VAL_LEN, 0 - editor->raster());
             }
 
       else
diff --git a/muse2/muse/midiedit/ecanvas.h b/muse2/muse/midiedit/ecanvas.h
index 773675b9..f31b5f6b 100644
--- a/muse2/muse/midiedit/ecanvas.h
+++ b/muse2/muse/midiedit/ecanvas.h
@@ -68,8 +68,8 @@ class EventCanvas : public MusEWidget::Canvas {
       virtual void addItem(Part*, Event&) = 0;
       // Added by T356.
       virtual QPoint raster(const QPoint&) const;
-      virtual Undo moveCanvasItems(CItemList&, int, int, DragType) = 0;
-      virtual UndoOp moveItem(CItem*, const QPoint&, DragType) = 0;
+      virtual Undo moveCanvasItems(MusEWidget::CItemList&, int, int, DragType) = 0;
+      virtual UndoOp moveItem(MusEWidget::CItem*, const QPoint&, DragType) = 0;
       virtual void endMoveItems(const QPoint&, DragType, int dir);
 
    public slots:
@@ -96,7 +96,7 @@ class EventCanvas : public MusEWidget::Canvas {
       void playEvents(bool flag) { _playEvents = flag; }
       void selectAtTick(unsigned int tick);
       void viewDropEvent(QDropEvent* event);
-      virtual void modifySelected(NoteInfo::ValType, int) {}
+      virtual void modifySelected(MusEWidget::NoteInfo::ValType, int) {}
       virtual void keyPress(QKeyEvent*);
       };
 
diff --git a/muse2/muse/midiedit/piano.cpp b/muse2/muse/midiedit/piano.cpp
index c034868a..d347b10a 100644
--- a/muse2/muse/midiedit/piano.cpp
+++ b/muse2/muse/midiedit/piano.cpp
@@ -367,7 +367,7 @@ static const char *mk4_xpm[] = {
 //---------------------------------------------------------
 
 Piano::Piano(QWidget* parent, int ymag)
-   : View(parent, 1, ymag)
+   : MusEWidget::View(parent, 1, ymag)
       {
       setMouseTracking(true);
       curPitch = -1;
diff --git a/muse2/muse/midiedit/piano.h b/muse2/muse/midiedit/piano.h
index 28ddd2c9..133295ab 100644
--- a/muse2/muse/midiedit/piano.h
+++ b/muse2/muse/midiedit/piano.h
@@ -36,7 +36,7 @@ class QPixmap;
 //   Piano
 //---------------------------------------------------------
 
-class Piano : public View
+class Piano : public MusEWidget::View
       {
       Q_OBJECT
     
diff --git a/muse2/muse/midiedit/pianoroll.cpp b/muse2/muse/midiedit/pianoroll.cpp
index c207ed45..e07d95bb 100644
--- a/muse2/muse/midiedit/pianoroll.cpp
+++ b/muse2/muse/midiedit/pianoroll.cpp
@@ -277,21 +277,21 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       transport->addActions(MusEGlobal::transportAction->actions());
 
       addToolBarBreak();
-      toolbar = new Toolbar1(this, _rasterInit);
+      toolbar = new MusEWidget::Toolbar1(this, _rasterInit);
       addToolBar(toolbar);
 
       addToolBarBreak();
-      info    = new NoteInfo(this);
+      info    = new MusEWidget::NoteInfo(this);
       addToolBar(info);
 
       //---------------------------------------------------
       //    split
       //---------------------------------------------------
 
-      splitter = new Splitter(Qt::Vertical, mainw, "splitter");
+      splitter = new MusEWidget::Splitter(Qt::Vertical, mainw, "splitter");
       splitter->setHandleWidth(2);  
       
-      hsplitter = new Splitter(Qt::Horizontal, mainw, "hsplitter");
+      hsplitter = new MusEWidget::Splitter(Qt::Horizontal, mainw, "hsplitter");
       hsplitter->setChildrenCollapsible(true);
       hsplitter->setHandleWidth(2);
       
@@ -300,9 +300,9 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       ctrl->setObjectName("Ctrl");
       ctrl->setFont(MusEConfig::config.fonts[3]);
       ctrl->setToolTip(tr("Add Controller View"));
-      //hscroll = new ScrollScale(-25, -2, xscale, 20000, Qt::Horizontal, mainw);
+      //hscroll = new MusEWidget::ScrollScale(-25, -2, xscale, 20000, Qt::Horizontal, mainw);
       // Increased scale to -1. To resolve/select/edit 1-tick-wide (controller graph) events. p4.0.18 Tim.
-      hscroll = new ScrollScale(-25, -1, xscale, 20000, Qt::Horizontal, mainw);
+      hscroll = new MusEWidget::ScrollScale(-25, -1, xscale, 20000, Qt::Horizontal, mainw);
       ctrl->setFixedSize(pianoWidth, hscroll->sizeHint().height());
       //ctrl->setFixedSize(pianoWidth / 2, hscroll->sizeHint().height());  // Tim.
       
@@ -317,7 +317,7 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       
       QSizeGrip* corner = new QSizeGrip(mainw);
 
-      midiTrackInfo       = new MidiTrackInfo(mainw);        
+      midiTrackInfo       = new MusEWidget::MidiTrackInfo(mainw);        
       int mtiw = midiTrackInfo->width(); // Save this.
       midiTrackInfo->setMinimumWidth(100);   
       //midiTrackInfo->setMaximumWidth(150);   
@@ -370,10 +370,10 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       gridS1->setSpacing(0);  
     //Defined and configure your program change bar here.
     //This may well be a copy of MTScale extended for our needs
-      time                = new MTScale(&_raster, split1, xscale);
+      time                = new MusEWidget::MTScale(&_raster, split1, xscale);
       Piano* piano        = new Piano(split1, yscale);
       canvas              = new PianoCanvas(this, split1, xscale, yscale);
-      vscroll             = new ScrollScale(-3, 7, yscale, KH * 75, Qt::Vertical, split1);
+      vscroll             = new MusEWidget::ScrollScale(-3, 7, yscale, KH * 75, Qt::Vertical, split1);
       
       //setFocusProxy(canvas);   // Tim.
       
@@ -391,7 +391,7 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       //gridS1->setColumnStretch(2, 100);  // Tim.
 
       gridS1->addWidget(time,                   0, 1, 1, 2);
-      gridS1->addWidget(hLine(split1),          1, 0, 1, 3);
+      gridS1->addWidget(MusEUtil::hLine(split1),          1, 0, 1, 3);
       gridS1->addWidget(piano,                  2,    0);
       gridS1->addWidget(canvas,                 2,    1);
       gridS1->addWidget(vscroll,                2,    2);
@@ -399,7 +399,7 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       // Tim.
       /*      
       gridS1->addWidget(time,                   0, 2, 1, 3);
-      gridS1->addWidget(hLine(split1),          1, 1, 1, 4);
+      gridS1->addWidget(MusEUtil::hLine(split1),          1, 1, 1, 4);
       //gridS1->addWidget(infoScroll,             2,    0);
       gridS1->addWidget(infoScroll,             0, 0, 3, 1);
       gridS1->addWidget(piano,                  2,    1);
@@ -407,7 +407,7 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
       gridS1->addWidget(vscroll,                2,    3);
       */
 
-      ctrlLane = new Splitter(Qt::Vertical, splitter, "ctrllane");
+      ctrlLane = new MusEWidget::Splitter(Qt::Vertical, splitter, "ctrllane");
       QWidget* split2     = new QWidget(splitter);
           split2->setMaximumHeight(hscroll->sizeHint().height());
           split2->setMinimumHeight(hscroll->sizeHint().height());
@@ -433,7 +433,7 @@ PianoRoll::PianoRoll(PartList* pl, QWidget* parent, const char* name, unsigned i
 
       connect(ctrl, SIGNAL(clicked()), SLOT(addCtrl()));
       //connect(trackInfoButton, SIGNAL(clicked()), SLOT(toggleTrackInfo()));  Tim.
-      connect(info, SIGNAL(valueChanged(NoteInfo::ValType, int)), SLOT(noteinfoChanged(NoteInfo::ValType, int)));
+      connect(info, SIGNAL(valueChanged(MusEWidget::NoteInfo::ValType, int)), SLOT(noteinfoChanged(MusEWidget::NoteInfo::ValType, int)));
       connect(vscroll, SIGNAL(scrollChanged(int)), piano,  SLOT(setYPos(int)));
       connect(vscroll, SIGNAL(scrollChanged(int)), canvas, SLOT(setYPos(int)));
       connect(vscroll, SIGNAL(scaleChanged(int)),  canvas, SLOT(setYMag(int)));
@@ -692,7 +692,7 @@ void PianoRoll::setSelection(int tick, Event& e, Part* p)
 //    edit currently selected Event
 //---------------------------------------------------------
 
-void PianoRoll::noteinfoChanged(NoteInfo::ValType type, int val)
+void PianoRoll::noteinfoChanged(MusEWidget::NoteInfo::ValType type, int val)
       {
       int selections = canvas->selectionSize();
 
@@ -702,19 +702,19 @@ void PianoRoll::noteinfoChanged(NoteInfo::ValType type, int val)
       else if (selections == 1) {
             Event event = selEvent.clone();
             switch(type) {
-                  case NoteInfo::VAL_TIME:
+                  case MusEWidget::NoteInfo::VAL_TIME:
                         event.setTick(val - selPart->tick());
                         break;
-                  case NoteInfo::VAL_LEN:
+                  case MusEWidget::NoteInfo::VAL_LEN:
                         event.setLenTick(val);
                         break;
-                  case NoteInfo::VAL_VELON:
+                  case MusEWidget::NoteInfo::VAL_VELON:
                         event.setVelo(val);
                         break;
-                  case NoteInfo::VAL_VELOFF:
+                  case MusEWidget::NoteInfo::VAL_VELOFF:
                         event.setVeloOff(val);
                         break;
-                  case NoteInfo::VAL_PITCH:
+                  case MusEWidget::NoteInfo::VAL_PITCH:
                         event.setPitch(val);
                         break;
                   }
@@ -728,23 +728,23 @@ void PianoRoll::noteinfoChanged(NoteInfo::ValType type, int val)
 
             int delta = 0;
             switch (type) {
-                  case NoteInfo::VAL_TIME:
+                  case MusEWidget::NoteInfo::VAL_TIME:
                         delta = val - tickOffset;
                         tickOffset = val;
                         break;
-                  case NoteInfo::VAL_LEN:
+                  case MusEWidget::NoteInfo::VAL_LEN:
                         delta = val - lenOffset;
                         lenOffset = val;
                         break;
-                  case NoteInfo::VAL_VELON:
+                  case MusEWidget::NoteInfo::VAL_VELON:
                         delta = val - veloOnOffset;
                         veloOnOffset = val;
                         break;
-                  case NoteInfo::VAL_VELOFF:
+                  case MusEWidget::NoteInfo::VAL_VELOFF:
                         delta = val - veloOffOffset;
                         veloOffOffset = val;
                         break;
-                  case NoteInfo::VAL_PITCH:
+                  case MusEWidget::NoteInfo::VAL_PITCH:
                         delta = val - pitchOffset;
                         pitchOffset = val;
                         break;
@@ -1063,22 +1063,22 @@ void PianoRoll::keyPressEvent(QKeyEvent* event)
             }
       else if (key == shortcuts[SHRT_ZOOM_IN].key) {
             int mag = hscroll->mag();
-            int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+            int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
             if (zoomlvl < 23)
                   zoomlvl++;
 
-            int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+            int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
             hscroll->setMag(newmag);
             //printf("mag = %d zoomlvl = %d newmag = %d\n", mag, zoomlvl, newmag);
             return;
             }
       else if (key == shortcuts[SHRT_ZOOM_OUT].key) {
             int mag = hscroll->mag();
-            int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+            int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
             if (zoomlvl > 1)
                   zoomlvl--;
 
-            int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+            int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
             hscroll->setMag(newmag);
             //printf("mag = %d zoomlvl = %d newmag = %d\n", mag, zoomlvl, newmag);
             return;
diff --git a/muse2/muse/midiedit/pianoroll.h b/muse2/muse/midiedit/pianoroll.h
index 885d6538..9a6eb655 100644
--- a/muse2/muse/midiedit/pianoroll.h
+++ b/muse2/muse/midiedit/pianoroll.h
@@ -47,9 +47,7 @@ class QToolButton;
 class QToolBar;
 class QPushButton;
 class CtrlEdit;
-class Splitter;
 class PartList;
-class Toolbar1;
 class Xml;
 class ScrollScale;
 class Part;
@@ -58,9 +56,14 @@ class QMenu;
 class QAction;
 class QWidget;
 class QScrollBar;
-class MidiTrackInfo;
 class QScrollArea;
 
+namespace MusEWidget {
+class MidiTrackInfo;
+class Splitter;
+class Toolbar1;
+}
+
 //---------------------------------------------------------
 //   PianoRoll
 //---------------------------------------------------------
@@ -78,7 +81,7 @@ class PianoRoll : public MidiEditor {
 
       
       QMenu *menuEdit, *menuFunctions, *menuSelect, *menuConfig, *eventColor, *menuPlugins;
-      MidiTrackInfo *midiTrackInfo;
+      MusEWidget::MidiTrackInfo *midiTrackInfo;
       Track* selected;
       
       QAction* editCutAction; 
@@ -116,14 +119,14 @@ class PianoRoll : public MidiEditor {
       int veloOffOffset;
       bool deltaMode;
 
-      NoteInfo* info;
+      MusEWidget::NoteInfo* info;
       QToolButton* srec;
       QToolButton* midiin;
 
-      Toolbar1* toolbar;
-      Splitter* splitter;
-      Splitter* hsplitter;
-      Splitter* ctrlLane;
+      MusEWidget::Toolbar1* toolbar;
+      MusEWidget::Splitter* splitter;
+      MusEWidget::Splitter* hsplitter;
+      MusEWidget::Splitter* ctrlLane;
 
       QToolButton* speaker;
       QToolBar* tools;
@@ -154,7 +157,7 @@ class PianoRoll : public MidiEditor {
 
    private slots:
       void setSelection(int, Event&, Part*);
-      void noteinfoChanged(NoteInfo::ValType, int);
+      void noteinfoChanged(MusEWidget::NoteInfo::ValType, int);
       //CtrlEdit* addCtrl();
       void removeCtrl(CtrlEdit* ctrl);
       void soloChanged(bool flag);
diff --git a/muse2/muse/midiedit/prcanvas.cpp b/muse2/muse/midiedit/prcanvas.cpp
index 1a2644f6..55d51ad0 100644
--- a/muse2/muse/midiedit/prcanvas.cpp
+++ b/muse2/muse/midiedit/prcanvas.cpp
@@ -60,7 +60,7 @@
 //   NEvent
 //---------------------------------------------------------
 
-NEvent::NEvent(Event& e, Part* p, int y) : CItem(e, p)
+NEvent::NEvent(Event& e, Part* p, int y) : MusEWidget::CItem(e, p)
       {
       y = y - KH/4;
       unsigned tick = e.tick() + p->tick();
@@ -156,7 +156,7 @@ int PianoCanvas::y2pitch(int y) const
 //    draws a note
 //---------------------------------------------------------
 
-void PianoCanvas::drawItem(QPainter& p, const CItem* item,
+void PianoCanvas::drawItem(QPainter& p, const MusEWidget::CItem* item,
    const QRect& rect)
       {
       QRect r = item->bbox();
@@ -295,7 +295,7 @@ void PianoCanvas::drawTopItem(QPainter& , const QRect&)
 //    draws moving items
 //---------------------------------------------------------
 
-void PianoCanvas::drawMoving(QPainter& p, const CItem* item, const QRect& rect)
+void PianoCanvas::drawMoving(QPainter& p, const MusEWidget::CItem* item, const QRect& rect)
     {
       //if(((NEvent*)item)->part() != curPart)
       //  return;
@@ -326,7 +326,7 @@ void PianoCanvas::viewMouseDoubleClickEvent(QMouseEvent* event)
 //   moveCanvasItems
 //---------------------------------------------------------
 
-Undo PianoCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dtype)
+Undo PianoCanvas::moveCanvasItems(MusEWidget::CItemList& items, int dp, int dx, DragType dtype)
 {      
   if(editor->parts()->empty())
     return Undo(); //return empty list
@@ -341,9 +341,9 @@ Undo PianoCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dty
       continue;
     
     int npartoffset = 0;
-    for(iCItem ici = items.begin(); ici != items.end(); ++ici) 
+    for(MusEWidget::iCItem ici = items.begin(); ici != items.end(); ++ici) 
     {
-      CItem* ci = ici->second;
+      MusEWidget::CItem* ci = ici->second;
       if(ci->part() != part)
         continue;
       
@@ -396,12 +396,12 @@ Undo PianoCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dty
 	
 	if (!forbidden)
 	{
-		std::vector< CItem* > doneList;
-		typedef std::vector< CItem* >::iterator iDoneList;
+		std::vector< MusEWidget::CItem* > doneList;
+		typedef std::vector< MusEWidget::CItem* >::iterator iDoneList;
 		
-		for(iCItem ici = items.begin(); ici != items.end(); ++ici) 
+		for(MusEWidget::iCItem ici = items.begin(); ici != items.end(); ++ici) 
 		{
-			CItem* ci = ici->second;
+		        MusEWidget::CItem* ci = ici->second;
 			
 			int x = ci->pos().x();
 			int y = ci->pos().y();
@@ -452,7 +452,7 @@ Undo PianoCanvas::moveCanvasItems(CItemList& items, int dp, int dx, DragType dty
 //    called after moving an object
 //---------------------------------------------------------
 
-UndoOp PianoCanvas::moveItem(CItem* item, const QPoint& pos, DragType dtype)
+UndoOp PianoCanvas::moveItem(MusEWidget::CItem* item, const QPoint& pos, DragType dtype)
       {
       NEvent* nevent = (NEvent*) item;
       Event event    = nevent->event();
@@ -497,7 +497,7 @@ UndoOp PianoCanvas::moveItem(CItem* item, const QPoint& pos, DragType dtype)
 //   newItem(p, state)
 //---------------------------------------------------------
 
-CItem* PianoCanvas::newItem(const QPoint& p, int)
+MusEWidget::CItem* PianoCanvas::newItem(const QPoint& p, int)
       {
       //printf("newItem point\n");
       int pitch = y2pitch(p.y());
@@ -514,7 +514,7 @@ CItem* PianoCanvas::newItem(const QPoint& p, int)
       return new NEvent(e, curPart, pitch2y(pitch));
       }
 
-void PianoCanvas::newItem(CItem* item, bool noSnap)
+void PianoCanvas::newItem(MusEWidget::CItem* item, bool noSnap)
       {
       //printf("newItem citem\n");
       NEvent* nevent = (NEvent*) item;
@@ -560,7 +560,7 @@ void PianoCanvas::newItem(CItem* item, bool noSnap)
 //   resizeItem
 //---------------------------------------------------------
 
-void PianoCanvas::resizeItem(CItem* item, bool noSnap, bool)         // experimental changes to try dynamically extending parts
+void PianoCanvas::resizeItem(MusEWidget::CItem* item, bool noSnap, bool)         // experimental changes to try dynamically extending parts
       {
       //printf("resizeItem!\n");
       NEvent* nevent = (NEvent*) item;
@@ -604,7 +604,7 @@ void PianoCanvas::resizeItem(CItem* item, bool noSnap, bool)         // experime
 //   deleteItem
 //---------------------------------------------------------
 
-bool PianoCanvas::deleteItem(CItem* item)
+bool PianoCanvas::deleteItem(MusEWidget::CItem* item)
       {
       NEvent* nevent = (NEvent*) item;
       if (nevent->part() == curPart) {
@@ -828,7 +828,7 @@ void PianoCanvas::cmd(int cmd)
       {
       switch (cmd) {
             case CMD_SELECT_ALL:     // select all
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         if (!k->second->isSelected())
                               selectItem(k->second, true);
                         }
@@ -837,12 +837,12 @@ void PianoCanvas::cmd(int cmd)
                   deselectAll();
                   break;
             case CMD_SELECT_INVERT:     // invert selection
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         selectItem(k->second, !k->second->isSelected());
                         }
                   break;
             case CMD_SELECT_ILOOP:     // select inside loop
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         NEvent* nevent = (NEvent*)(k->second);
                         Part* part     = nevent->part();
                         Event event    = nevent->event();
@@ -854,7 +854,7 @@ void PianoCanvas::cmd(int cmd)
                         }
                   break;
             case CMD_SELECT_OLOOP:     // select outside loop
-                  for (iCItem k = items.begin(); k != items.end(); ++k) {
+                  for (MusEWidget::iCItem k = items.begin(); k != items.end(); ++k) {
                         NEvent* nevent = (NEvent*)(k->second);
                         Part* part     = nevent->part();
                         Event event    = nevent->event();
@@ -956,7 +956,7 @@ void PianoCanvas::midiNote(int pitch, int velo)
 //   startDrag
 //---------------------------------------------------------
 
-void PianoCanvas::startDrag(CItem* /* item*/, bool copymode)
+void PianoCanvas::startDrag(MusEWidget::CItem* /* item*/, bool copymode)
       {
       QMimeData* md = selected_events_to_mime(partlist_to_set(editor->parts()), 1);
       
@@ -1008,7 +1008,7 @@ void PianoCanvas::dragLeaveEvent(QDragLeaveEvent*)
 //   itemPressed
 //---------------------------------------------------------
 
-void PianoCanvas::itemPressed(const CItem* item)
+void PianoCanvas::itemPressed(const MusEWidget::CItem* item)
       {
       if (!_playEvents)
             return;
@@ -1029,7 +1029,7 @@ void PianoCanvas::itemPressed(const CItem* item)
 //   itemReleased
 //---------------------------------------------------------
 
-void PianoCanvas::itemReleased(const CItem*, const QPoint&)
+void PianoCanvas::itemReleased(const MusEWidget::CItem*, const QPoint&)
       {
       if (!_playEvents)
             return;
@@ -1046,7 +1046,7 @@ void PianoCanvas::itemReleased(const CItem*, const QPoint&)
 //   itemMoved
 //---------------------------------------------------------
 
-void PianoCanvas::itemMoved(const CItem* item, const QPoint& pos)
+void PianoCanvas::itemMoved(const MusEWidget::CItem* item, const QPoint& pos)
       {
       int npitch = y2pitch(pos.y());
       if ((playedPitch != -1) && (playedPitch != npitch)) {
@@ -1078,11 +1078,11 @@ void PianoCanvas::curPartChanged()
 //   modifySelected
 //---------------------------------------------------------
 
-void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
+void PianoCanvas::modifySelected(MusEWidget::NoteInfo::ValType type, int delta)
       {
       audio->msgIdle(true);
       song->startUndo();
-      for (iCItem i = items.begin(); i != items.end(); ++i) {
+      for (MusEWidget::iCItem i = items.begin(); i != items.end(); ++i) {
             if (!(i->second->isSelected()))
                   continue;
             NEvent* e   = (NEvent*)(i->second);
@@ -1094,7 +1094,7 @@ void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
             Event newEvent = event.clone();
 
             switch (type) {
-                  case NoteInfo::VAL_TIME:
+                  case MusEWidget::NoteInfo::VAL_TIME:
                         {
                         int newTime = event.tick() + delta;
                         if (newTime < 0)
@@ -1102,7 +1102,7 @@ void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
                         newEvent.setTick(newTime);
                         }
                         break;
-                  case NoteInfo::VAL_LEN:
+                  case MusEWidget::NoteInfo::VAL_LEN:
                         {
                         int len = event.lenTick() + delta;
                         if (len < 1)
@@ -1110,7 +1110,7 @@ void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
                         newEvent.setLenTick(len);
                         }
                         break;
-                  case NoteInfo::VAL_VELON:
+                  case MusEWidget::NoteInfo::VAL_VELON:
                         {
                         int velo = event.velo() + delta;
                         if (velo > 127)
@@ -1120,7 +1120,7 @@ void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
                         newEvent.setVelo(velo);
                         }
                         break;
-                  case NoteInfo::VAL_VELOFF:
+                  case MusEWidget::NoteInfo::VAL_VELOFF:
                         {
                         int velo = event.veloOff() + delta;
                         if (velo > 127)
@@ -1130,7 +1130,7 @@ void PianoCanvas::modifySelected(NoteInfo::ValType type, int delta)
                         newEvent.setVeloOff(velo);
                         }
                         break;
-                  case NoteInfo::VAL_PITCH:
+                  case MusEWidget::NoteInfo::VAL_PITCH:
                         {
                         int pitch = event.pitch() + delta;
                         if (pitch > 127)
diff --git a/muse2/muse/midiedit/prcanvas.h b/muse2/muse/midiedit/prcanvas.h
index 9fc1479a..d239994e 100644
--- a/muse2/muse/midiedit/prcanvas.h
+++ b/muse2/muse/midiedit/prcanvas.h
@@ -41,7 +41,7 @@
 //    ''visual'' Note Event
 //---------------------------------------------------------
 
-class NEvent : public CItem {
+class NEvent : public MusEWidget::CItem {
    public:
       NEvent(Event& e, Part* p, int y);
       };
@@ -66,16 +66,16 @@ class PianoCanvas : public EventCanvas {
 
       
       virtual void viewMouseDoubleClickEvent(QMouseEvent*);
-      virtual void drawItem(QPainter&, const CItem*, const QRect&);
+      virtual void drawItem(QPainter&, const MusEWidget::CItem*, const QRect&);
       void drawTopItem(QPainter &p, const QRect &rect);
-      virtual void drawMoving(QPainter&, const CItem*, const QRect&);
-      virtual Undo moveCanvasItems(CItemList&, int, int, DragType);
-      virtual UndoOp moveItem(CItem*, const QPoint&, DragType);
-      virtual CItem* newItem(const QPoint&, int);
-      virtual void resizeItem(CItem*, bool noSnap, bool);
-      virtual void newItem(CItem*, bool noSnap);
-      virtual bool deleteItem(CItem*);
-      virtual void startDrag(CItem* item, bool copymode);
+      virtual void drawMoving(QPainter&, const MusEWidget::CItem*, const QRect&);
+      virtual Undo moveCanvasItems(MusEWidget::CItemList&, int, int, DragType);
+      virtual UndoOp moveItem(MusEWidget::CItem*, const QPoint&, DragType);
+      virtual MusEWidget::CItem* newItem(const QPoint&, int);
+      virtual void resizeItem(MusEWidget::CItem*, bool noSnap, bool);
+      virtual void newItem(MusEWidget::CItem*, bool noSnap);
+      virtual bool deleteItem(MusEWidget::CItem*);
+      virtual void startDrag(MusEWidget::CItem* item, bool copymode);
       virtual void dragEnterEvent(QDragEnterEvent* event);
       virtual void dragMoveEvent(QDragMoveEvent*);
       virtual void dragLeaveEvent(QDragLeaveEvent*);
@@ -84,9 +84,9 @@ class PianoCanvas : public EventCanvas {
       int y2pitch(int) const;
       int pitch2y(int) const;
       virtual void drawCanvas(QPainter&, const QRect&);
-      virtual void itemPressed(const CItem*);
-      virtual void itemReleased(const CItem*, const QPoint&);
-      virtual void itemMoved(const CItem*, const QPoint&);
+      virtual void itemPressed(const MusEWidget::CItem*);
+      virtual void itemReleased(const MusEWidget::CItem*, const QPoint&);
+      virtual void itemMoved(const MusEWidget::CItem*, const QPoint&);
       virtual void curPartChanged();
       virtual void resizeEvent(QResizeEvent*);
 
@@ -122,7 +122,7 @@ class PianoCanvas : public EventCanvas {
             colorMode = mode;
             redraw();
             }
-      virtual void modifySelected(NoteInfo::ValType type, int delta);
+      virtual void modifySelected(MusEWidget::NoteInfo::ValType type, int delta);
       };
 #endif
 
diff --git a/muse2/muse/midiedit/scoreedit.cpp b/muse2/muse/midiedit/scoreedit.cpp
index 7965be1a..8847c105 100644
--- a/muse2/muse/midiedit/scoreedit.cpp
+++ b/muse2/muse/midiedit/scoreedit.cpp
@@ -194,7 +194,7 @@ ScoreEdit::ScoreEdit(QWidget* parent, const char* name, unsigned initPos)
 	score_canvas=new ScoreCanvas(this, mainw);
 	xscroll = new QScrollBar(Qt::Horizontal, mainw);
 	yscroll = new QScrollBar(Qt::Vertical, mainw);
-	time_bar = new MTScaleFlo(score_canvas, mainw);
+	time_bar = new MusEWidget::MTScaleFlo(score_canvas, mainw);
 
 	connect(xscroll, SIGNAL(valueChanged(int)), score_canvas,   SLOT(x_scroll_event(int)));
 	connect(score_canvas, SIGNAL(xscroll_changed(int)), xscroll,   SLOT(setValue(int)));
diff --git a/muse2/muse/midiedit/scoreedit.h b/muse2/muse/midiedit/scoreedit.h
index f340a9b0..4d553e82 100644
--- a/muse2/muse/midiedit/scoreedit.h
+++ b/muse2/muse/midiedit/scoreedit.h
@@ -109,7 +109,7 @@ class ScoreEdit : public TopWin
 		QGridLayout* mainGrid;
 		QWidget* mainw;
 		
-                MusEWidget::EditToolBar* edit_tools;
+		MusEWidget::EditToolBar* edit_tools;
 		QSpinBox* velo_spinbox;
 		QSpinBox* velo_off_spinbox;
 		
@@ -162,7 +162,7 @@ class ScoreEdit : public TopWin
 		QScrollBar* xscroll;
 		QScrollBar* yscroll;
 		ScoreCanvas* score_canvas;
-		MTScaleFlo* time_bar;
+		MusEWidget::MTScaleFlo* time_bar;
 		
 		QLabel* apply_velo_to_label;
 		bool apply_velo;
@@ -608,7 +608,7 @@ int calc_timesig_width(int num, int denom);
 int calc_number_width(int n);
 
 
-class ScoreCanvas : public View
+class ScoreCanvas : public MusEWidget::View
 {
 	Q_OBJECT
 	private:
diff --git a/muse2/muse/midieditor.cpp b/muse2/muse/midieditor.cpp
index ff33a789..71d8e97f 100644
--- a/muse2/muse/midieditor.cpp
+++ b/muse2/muse/midieditor.cpp
@@ -244,11 +244,11 @@ void MidiEditor::setCurCanvasPart(Part* part)
 void MidiEditor::horizontalZoomIn()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl < 23)
         zoomlvl++;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
@@ -257,11 +257,11 @@ void MidiEditor::horizontalZoomIn()
 void MidiEditor::horizontalZoomOut()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl > 1)
         zoomlvl--;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
diff --git a/muse2/muse/midieditor.h b/muse2/muse/midieditor.h
index 6d0bda9a..abfe8e8d 100644
--- a/muse2/muse/midieditor.h
+++ b/muse2/muse/midieditor.h
@@ -33,13 +33,16 @@ class QWidget;
 class PartList;
 class Xml;
 class EventCanvas;
-class ScrollScale;
 class CtrlEdit;
-class MTScale;
 class WaveView;
 class Part;
 class WavePart;
 
+namespace MusEWidget {
+class MTScale;
+class ScrollScale;
+}
+
 //---------------------------------------------------------
 //   MidiEditor
 //---------------------------------------------------------
@@ -52,9 +55,9 @@ class MidiEditor : public TopWin  {
       int _curDrumInstrument;  // currently selected instrument if drum
                                // editor
    protected:
-      ScrollScale* hscroll;
-      ScrollScale* vscroll;
-      MTScale* time;
+      MusEWidget::ScrollScale* hscroll;
+      MusEWidget::ScrollScale* vscroll;
+      MusEWidget::MTScale* time;
       EventCanvas* canvas;
       WaveView* wview;
 
diff --git a/muse2/muse/mixer/astrip.cpp b/muse2/muse/mixer/astrip.cpp
index 11927e25..4084a7d4 100644
--- a/muse2/muse/mixer/astrip.cpp
+++ b/muse2/muse/mixer/astrip.cpp
@@ -601,7 +601,7 @@ void AudioStrip::updateChannels()
       
       if (c > channel) {
             for (int cc = channel; cc < c; ++cc) {
-                  meter[cc] = new Meter(this);
+                  meter[cc] = new MusEWidget::Meter(this);
                   //meter[cc]->setRange(MusEConfig::config.minSlider, 10.0);
                   meter[cc]->setRange(MusEConfig::config.minMeter, 10.0);
                   meter[cc]->setFixedWidth(15);
@@ -624,14 +624,14 @@ void AudioStrip::updateChannels()
       }
 
 //---------------------------------------------------------
-//   addKnob
+//   addMusEWidget::Knob
 //    type = 0 - panorama
 //           1 - aux send
 //---------------------------------------------------------
 
-Knob* AudioStrip::addKnob(int type, int id, DoubleLabel** dlabel)
+MusEWidget::Knob* AudioStrip::addKnob(int type, int id, MusEWidget::DoubleLabel** dlabel)
       {
-      Knob* knob = new Knob(this);
+      MusEWidget::Knob* knob = new MusEWidget::Knob(this);
       knob->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum));
       if (type == 0)
             knob->setRange(-1.0, +1.0);
@@ -644,11 +644,11 @@ Knob* AudioStrip::addKnob(int type, int id, DoubleLabel** dlabel)
       else
             knob->setToolTip(tr("aux send level"));
 
-      DoubleLabel* pl;
+      MusEWidget::DoubleLabel* pl;
       if (type == 0)
-            pl = new DoubleLabel(0, -1.0, +1.0, this);
+            pl = new MusEWidget::DoubleLabel(0, -1.0, +1.0, this);
       else
-            pl = new DoubleLabel(0.0, MusEConfig::config.minSlider, 10.1, this);
+            pl = new MusEWidget::DoubleLabel(0.0, MusEConfig::config.minSlider, 10.1, this);
             
       if (dlabel)
             *dlabel = pl;
@@ -733,7 +733,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       
       int ch = 0;
       for (; ch < channel; ++ch)
-            meter[ch] = new Meter(this);
+            meter[ch] = new MusEWidget::Meter(this);
       for (; ch < MAX_CHANNELS; ++ch)
             meter[ch] = 0;
 
@@ -786,8 +786,8 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       int auxsSize = song->auxs()->size();
       if (t->hasAuxSend()) {
             for (int idx = 0; idx < auxsSize; ++idx) {
-                  DoubleLabel* al;
-                  Knob* ak = addKnob(1, idx, &al);
+                  MusEWidget::DoubleLabel* al;
+                  MusEWidget::Knob* ak = addKnob(1, idx, &al);
                   auxKnob.push_back(ak);
                   auxLabel.push_back(al);
                   double val = fast_log10(t->auxSend(idx))*20.0;
@@ -810,7 +810,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       sliderGrid->setContentsMargins(0, 0, 0, 0);
       sliderGrid->setSpacing(0);
       
-      slider = new Slider(this, "vol", Qt::Vertical, Slider::None);
+      slider = new MusEWidget::Slider(this, "vol", Qt::Vertical, MusEWidget::Slider::None);
 
       slider->setCursorHoming(true);
       slider->setRange(MusEConfig::config.minSlider-0.1, 10.0);
@@ -831,7 +831,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       sliderGrid->addItem(new QSpacerItem(2,0),0,3);
       grid->addLayout(sliderGrid, _curGridRow++, 0, 1, 2); 
 
-      sl = new DoubleLabel(0.0, MusEConfig::config.minSlider, 10.0, this);
+      sl = new MusEWidget::DoubleLabel(0.0, MusEConfig::config.minSlider, 10.0, this);
       sl->setSlider(slider);
       sl->setFont(MusEConfig::config.fonts[1]);
       sl->setBackgroundRole(QPalette::Mid);
@@ -862,7 +862,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       //---------------------------------------------------
 
       if (track->canRecord()) {
-            record  = new TransparentToolButton(this);
+            record  = new MusEWidget::TransparentToolButton(this);
             record->setCheckable(true);
             record->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum));
             record->setBackgroundRole(QPalette::Mid);
@@ -919,7 +919,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
             solo->setToolTip(tr("solo mode"));
             }
 
-      off  = new TransparentToolButton(this);
+      off  = new MusEWidget::TransparentToolButton(this);
       QIcon iconSet;
       iconSet.addPixmap(*exit1Icon, QIcon::Normal, QIcon::On);
       iconSet.addPixmap(*exitIcon, QIcon::Normal, QIcon::Off);
@@ -967,7 +967,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
       //    automation type
       //---------------------------------------------------
 
-      autoType = new ComboBox();
+      autoType = new MusEWidget::ComboBox();
       autoType->setFont(MusEConfig::config.fonts[1]);
       autoType->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum));
       
@@ -1025,7 +1025,7 @@ AudioStrip::AudioStrip(QWidget* parent, AudioTrack* at)
 
 void AudioStrip::iRoutePressed()
       {
-      RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
+      MusEWidget::RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
       iR->setDown(false);     
       pup->exec(QCursor::pos(), track, false);
       }
@@ -1036,7 +1036,7 @@ void AudioStrip::iRoutePressed()
 
 void AudioStrip::oRoutePressed()
 {
-      RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
+      MusEWidget::RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
       oR->setDown(false);     
       pup->exec(QCursor::pos(), track, true);
 }
diff --git a/muse2/muse/mixer/astrip.h b/muse2/muse/mixer/astrip.h
index 19b1d8b9..fc25bb9b 100644
--- a/muse2/muse/mixer/astrip.h
+++ b/muse2/muse/mixer/astrip.h
@@ -29,17 +29,20 @@
 #include "strip.h"
 //#include "route.h"
 
+namespace MusEWidget {
+class DoubleLabel;
 class Slider;
 class Knob;
+class TransparentToolButton;
+}
+
 //class QDialog;
 class QToolButton;
 //class QAction;
 //class QPopupMenu;
 //class PopupMenu;
 class QButton;
-class TransparentToolButton;
 class AudioTrack;
-class DoubleLabel;
 class EffectRack;
 
 //---------------------------------------------------------
@@ -50,19 +53,19 @@ class AudioStrip : public Strip {
       Q_OBJECT
 
       int channel;
-      Slider* slider;
-      DoubleLabel* sl;
+      MusEWidget::Slider* slider;
+      MusEWidget::DoubleLabel* sl;
       EffectRack* rack;
 
-      Knob* pan;
-      DoubleLabel* panl;
+      MusEWidget::Knob* pan;
+      MusEWidget::DoubleLabel* panl;
 
-      std::vector<Knob*> auxKnob;
-      std::vector<DoubleLabel*> auxLabel;
+      std::vector<MusEWidget::Knob*> auxKnob;
+      std::vector<MusEWidget::DoubleLabel*> auxLabel;
 
       QToolButton* stereo;
       QToolButton* pre;
-      TransparentToolButton* off;
+      MusEWidget::TransparentToolButton* off;
 
       double volume;
       double panVal;
@@ -70,7 +73,7 @@ class AudioStrip : public Strip {
       //QToolButton* iR;
       //QToolButton* oR;
       
-      Knob* addKnob(int, int, DoubleLabel**);
+      MusEWidget::Knob* addKnob(int, int, MusEWidget::DoubleLabel**);
       
       void updateOffState();
       void updateVolume();
diff --git a/muse2/muse/mixer/auxknob.cpp b/muse2/muse/mixer/auxknob.cpp
index d770fe7b..a9b9c4e2 100644
--- a/muse2/muse/mixer/auxknob.cpp
+++ b/muse2/muse/mixer/auxknob.cpp
@@ -25,12 +25,14 @@
 #include "auxknob.h"
 #include "gconfig.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Aux
 //---------------------------------------------------------
 
 AuxKnob::AuxKnob(QWidget* parent, int i)
-   : Knob(parent, "aux")
+   : MusEWidget::Knob(parent, "aux")
       {
       idx = i;
       setRange(MusEConfig::config.minSlider-0.1, 10.0);
@@ -53,3 +55,4 @@ void AuxKnob::valueChanged(double val)
       emit auxChanged(idx, vol);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/mixer/auxknob.h b/muse2/muse/mixer/auxknob.h
index 6e20b05a..c8693698 100644
--- a/muse2/muse/mixer/auxknob.h
+++ b/muse2/muse/mixer/auxknob.h
@@ -26,6 +26,8 @@
 
 #include "knob.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   AuxKnob
 //---------------------------------------------------------
@@ -44,5 +46,7 @@ class AuxKnob : public Knob {
       AuxKnob(QWidget* parent, int idx);
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/mixer/mstrip.cpp b/muse2/muse/mixer/mstrip.cpp
index 17d21b21..d8e09adb 100644
--- a/muse2/muse/mixer/mstrip.cpp
+++ b/muse2/muse/mixer/mstrip.cpp
@@ -92,7 +92,7 @@ void MidiStrip::addKnob(int idx, const QString& tt, const QString& label,
       mn = mc->minVal();
       mx = mc->maxVal();
       
-      Knob* knob = new Knob(this);
+      MusEWidget::Knob* knob = new MusEWidget::Knob(this);
       knob->setRange(double(mn), double(mx), 1.0);
       knob->setId(ctl);
       
@@ -102,7 +102,7 @@ void MidiStrip::addKnob(int idx, const QString& tt, const QString& label,
       knob->setToolTip(tt);
       knob->setEnabled(enabled);
 
-      DoubleLabel* dl = new DoubleLabel(0.0, double(mn), double(mx), this);
+      MusEWidget::DoubleLabel* dl = new MusEWidget::DoubleLabel(0.0, double(mn), double(mx), this);
       dl->setId(idx);
       dl->setSpecialText(tr("off"));
       dl->setToolTip(tr("double click on/off"));
@@ -203,7 +203,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       int mn = mc->minVal();
       int mx = mc->maxVal();
       
-      slider = new Slider(this, "vol", Qt::Vertical, Slider::None,
+      slider = new MusEWidget::Slider(this, "vol", Qt::Vertical, MusEWidget::Slider::None,
                           QColor(100, 255, 100));
       slider->setCursorHoming(true);
       slider->setRange(double(mn), double(mx), 1.0);
@@ -211,7 +211,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       slider->setFont(MusEConfig::config.fonts[1]);
       slider->setId(CTRL_VOLUME);
 
-      meter[0] = new Meter(this, Meter::LinMeter);
+      meter[0] = new MusEWidget::Meter(this, MusEWidget::Meter::LinMeter);
       meter[0]->setRange(0, 127.0);
       meter[0]->setFixedWidth(15);
       connect(meter[0], SIGNAL(mousePress()), this, SLOT(resetPeaks()));
@@ -222,7 +222,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       sliderGrid->addWidget(meter[0], 0, 1, Qt::AlignLeft);
       grid->addLayout(sliderGrid, _curGridRow++, 0, 1, 2); 
 
-      sl = new DoubleLabel(0.0, -98.0, 0.0, this);
+      sl = new MusEWidget::DoubleLabel(0.0, -98.0, 0.0, this);
       sl->setFont(MusEConfig::config.fonts[1]);
       sl->setBackgroundRole(QPalette::Mid);
       sl->setSpecialText(tr("off"));
@@ -290,7 +290,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       //    record, mixdownfile
       //---------------------------------------------------
 
-      record  = new TransparentToolButton(this);
+      record  = new MusEWidget::TransparentToolButton(this);
       record->setBackgroundRole(QPalette::Mid);
       record->setCheckable(true);
       record->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum));
@@ -348,7 +348,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       
       // Special here: Must make label same size as the 'exit' button would be IF this were an audio strip...
       // (The 'exit1' icon is BIGGER than the 'record on' icon.)
-      TransparentToolButton* off  = new TransparentToolButton(this);
+      MusEWidget::TransparentToolButton* off  = new MusEWidget::TransparentToolButton(this);
       QIcon iconOff;
       iconOff.addPixmap(*exit1Icon, QIcon::Normal, QIcon::On);
       iconOff.addPixmap(*exitIcon, QIcon::Normal, QIcon::Off);
@@ -374,7 +374,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       QToolTip::add(dev_ch_label, tr("output port and channel"));
       */
       
-      off  = new TransparentToolButton(this);
+      off  = new MusEWidget::TransparentToolButton(this);
       QIcon iconOff;
       iconOff.addPixmap(*exit1Icon, QIcon::Normal, QIcon::On);
       iconOff.addPixmap(*exitIcon, QIcon::Normal, QIcon::Off);
@@ -420,7 +420,7 @@ MidiStrip::MidiStrip(QWidget* parent, MidiTrack* t)
       //    automation mode
       //---------------------------------------------------
 
-      autoType = new ComboBox();
+      autoType = new MusEWidget::ComboBox();
       autoType->setFont(MusEConfig::config.fonts[1]);
       autoType->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum));
       autoType->setEnabled(false);
@@ -674,7 +674,7 @@ void MidiStrip::updateControls()
           {
             //if(nvolume != volume) 
             //{
-              // DoubleLabel ignores the value if already set...
+              // MusEWidget::DoubleLabel ignores the value if already set...
               sl->setValue(sl->off() - 1.0);
               //volume = nvolume;
             //}  
@@ -736,7 +736,7 @@ void MidiStrip::updateControls()
           int npan = mp->hwCtrlState(channel, CTRL_PANPOT);
           if(npan == CTRL_VAL_UNKNOWN)
           {
-            // DoubleLabel ignores the value if already set...
+            // MusEWidget::DoubleLabel ignores the value if already set...
             //if(npan != pan) 
             //{
               gcon->dl->setValue(gcon->dl->off() - 1.0);
@@ -788,7 +788,7 @@ void MidiStrip::updateControls()
           int nvariSend = icl->second->hwVal();
           if(nvariSend == CTRL_VAL_UNKNOWN)
           {
-            // DoubleLabel ignores the value if already set...
+            // MusEWidget::DoubleLabel ignores the value if already set...
             //if(nvariSend != variSend) 
             //{
               gcon->dl->setValue(gcon->dl->off() - 1.0);
@@ -836,7 +836,7 @@ void MidiStrip::updateControls()
           int nreverbSend = icl->second->hwVal();
           if(nreverbSend == CTRL_VAL_UNKNOWN)
           {
-            // DoubleLabel ignores the value if already set...
+            // MusEWidget::DoubleLabel ignores the value if already set...
             //if(nreverbSend != reverbSend) 
             //{
               gcon->dl->setValue(gcon->dl->off() - 1.0);
@@ -884,7 +884,7 @@ void MidiStrip::updateControls()
           int nchorusSend = icl->second->hwVal();
           if(nchorusSend == CTRL_VAL_UNKNOWN)
           {
-            // DoubleLabel ignores the value if already set...
+            // MusEWidget::DoubleLabel ignores the value if already set...
             //if(nchorusSend != chorusSend) 
             //{
               gcon->dl->setValue(gcon->dl->off() - 1.0);
@@ -1012,7 +1012,7 @@ void MidiStrip::setReverbSend(double val)
 
 void MidiStrip::iRoutePressed()
 {
-  RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
+  MusEWidget::RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
   iR->setDown(false);     
   pup->exec(QCursor::pos(), track, false);
 }
@@ -1023,7 +1023,7 @@ void MidiStrip::iRoutePressed()
 
 void MidiStrip::oRoutePressed()
 {
-  RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
+  MusEWidget::RoutePopupMenu* pup = MusEGlobal::muse->getRoutingPopupMenu();
   oR->setDown(false);     
   pup->exec(QCursor::pos(), track, true);
 }
diff --git a/muse2/muse/mixer/mstrip.h b/muse2/muse/mixer/mstrip.h
index 54adc161..2f0a133d 100644
--- a/muse2/muse/mixer/mstrip.h
+++ b/muse2/muse/mixer/mstrip.h
@@ -27,15 +27,20 @@
 #include "strip.h"
 #include <QLabel>
 
-class Slider;
-class DoubleLabel;
+class QAction;
 class QDialog;
-class Knob;
-class QString;
-class MidiTrack;
 class QLabel;
-class QAction;
+class QString;
+
+namespace MusEWidget {
+class DoubleLabel;
+class Knob;
+class Slider;
 class TransparentToolButton;
+}
+
+class MidiTrack;
+
 
 //---------------------------------------------------------
 //   MidiStrip
@@ -44,13 +49,13 @@ class TransparentToolButton;
 class MidiStrip : public Strip {
       Q_OBJECT
 
-      Slider* slider;
-      DoubleLabel* sl;
-      TransparentToolButton* off;
+      MusEWidget::Slider* slider;
+      MusEWidget::DoubleLabel* sl;
+      MusEWidget::TransparentToolButton* off;
 
       struct KNOB {
-            Knob* knob;
-            DoubleLabel* dl;
+            MusEWidget::Knob* knob;
+            MusEWidget::DoubleLabel* dl;
             QLabel* lb;
             } controller[4];    // pan variation reverb chorus
 
diff --git a/muse2/muse/mixer/panknob.cpp b/muse2/muse/mixer/panknob.cpp
index e78a4837..077b39e1 100644
--- a/muse2/muse/mixer/panknob.cpp
+++ b/muse2/muse/mixer/panknob.cpp
@@ -27,11 +27,11 @@
 #include "track.h"
 
 //---------------------------------------------------------
-//   PanKnob
+//   PanMusEWidget::Knob
 //---------------------------------------------------------
 
-PanKnob::PanKnob(QWidget* parent, AudioTrack* s)
-   : Knob(parent, "pan")
+PanMusEWidget::Knob::PanMusEWidget::Knob(QWidget* parent, AudioTrack* s)
+   : MusEWidget::Knob(parent, "pan")
       {
       src = s;
       connect(this, SIGNAL(valueChanged(double,int)), SLOT(valueChanged(double)));
@@ -41,7 +41,7 @@ PanKnob::PanKnob(QWidget* parent, AudioTrack* s)
 //   panChanged
 //---------------------------------------------------------
 
-void PanKnob::valueChanged(double val)
+void PanMusEWidget::Knob::valueChanged(double val)
       {
       //audio->msgSetPan(src, val);
       // p4.0.21 audio->msgXXX waits. Do we really need to?
diff --git a/muse2/muse/mixer/rack.cpp b/muse2/muse/mixer/rack.cpp
index 86c3ff77..9e7dc754 100644
--- a/muse2/muse/mixer/rack.cpp
+++ b/muse2/muse/mixer/rack.cpp
@@ -414,8 +414,8 @@ void EffectRack::doubleClicked(QListWidgetItem* it)
 
 void EffectRack::savePreset(int idx)
       {
-      //QString name = getSaveFileName(QString(""), plug_file_pattern, this,
-      QString name = getSaveFileName(QString(""), MusEGlobal::preset_file_save_pattern, this,
+      //QString name = MusEWidget::getSaveFileName(QString(""), plug_file_pattern, this,
+      QString name = MusEWidget::getSaveFileName(QString(""), MusEGlobal::preset_file_save_pattern, this,
          tr("MusE: Save Preset"));
       
       if(name.isEmpty())
@@ -423,7 +423,7 @@ void EffectRack::savePreset(int idx)
         
       //FILE* presetFp = fopen(name.ascii(),"w+");
       bool popenFlag;
-      FILE* presetFp = fileOpen(this, name, QString(".pre"), "w", popenFlag, false, true);
+      FILE* presetFp = MusEWidget::fileOpen(this, name, QString(".pre"), "w", popenFlag, false, true);
       if (presetFp == 0) {
             //fprintf(stderr, "EffectRack::savePreset() fopen failed: %s\n",
             //   strerror(errno));
@@ -590,7 +590,7 @@ void EffectRack::dropEvent(QDropEvent *event)
               {
                   //bool popenFlag = false;
                   bool popenFlag;
-                  FILE* fp = fileOpen(this, text, ".pre", "r", popenFlag, false, false);
+                  FILE* fp = MusEWidget::fileOpen(this, text, ".pre", "r", popenFlag, false, false);
                   if (fp) 
                   {
                       Xml xml(fp);
diff --git a/muse2/muse/mixer/strip.cpp b/muse2/muse/mixer/strip.cpp
index 8f899c13..750f1623 100644
--- a/muse2/muse/mixer/strip.cpp
+++ b/muse2/muse/mixer/strip.cpp
@@ -97,7 +97,7 @@ void Strip::setLabelFont()
   // Set the label's font.
   label->setFont(MusEConfig::config.fonts[6]);
   // Dealing with a horizontally constrained label. Ignore vertical. Use a minimum readable point size.
-  autoAdjustFontSize(label, label->text(), false, true, MusEConfig::config.fonts[6].pointSize(), 5); 
+  MusEUtil::autoAdjustFontSize(label, label->text(), false, true, MusEConfig::config.fonts[6].pointSize(), 5); 
 }
 
 //---------------------------------------------------------
diff --git a/muse2/muse/mixer/strip.h b/muse2/muse/mixer/strip.h
index e8bf8ce1..602e6e07 100644
--- a/muse2/muse/mixer/strip.h
+++ b/muse2/muse/mixer/strip.h
@@ -36,10 +36,13 @@
 class Track;
 class QLabel;
 //class QVBoxLayout;
-class Meter;
 class QToolButton;
 class QGridLayout;
+
+namespace MusEWidget {
 class ComboBox;
+class Meter;
+}
 
 static const int STRIP_WIDTH = 65;
 
@@ -56,7 +59,7 @@ class Strip : public QFrame {
       //QVBoxLayout* layout;
       QGridLayout* grid;
       int _curGridRow;
-      Meter* meter[MAX_CHANNELS];
+      MusEWidget::Meter* meter[MAX_CHANNELS];
       bool useSoloIconSet2;
       
       QToolButton* record;
@@ -65,7 +68,7 @@ class Strip : public QFrame {
       QToolButton* iR; // Input routing button
       QToolButton* oR; // Output routing button
       QGridLayout* sliderGrid;
-      ComboBox* autoType;
+      MusEWidget::ComboBox* autoType;
       void setLabelText();
 
    private slots:
diff --git a/muse2/muse/mplugins/midifilter.ui b/muse2/muse/mplugins/midifilter.ui
index 529f893a..55263f2f 100644
--- a/muse2/muse/mplugins/midifilter.ui
+++ b/muse2/muse/mplugins/midifilter.ui
@@ -269,16 +269,16 @@
        <number>11</number>
       </property>
       <item>
-       <widget class="CtrlComboBox" name="cb1" native="true"/>
+       <widget class="MusEWidget::CtrlComboBox" name="cb1" native="true"/>
       </item>
       <item>
-       <widget class="CtrlComboBox" name="cb2" native="true"/>
+       <widget class="MusEWidget::CtrlComboBox" name="cb2" native="true"/>
       </item>
       <item>
-       <widget class="CtrlComboBox" name="cb3" native="true"/>
+       <widget class="MusEWidget::CtrlComboBox" name="cb3" native="true"/>
       </item>
       <item>
-       <widget class="CtrlComboBox" name="cb4" native="true"/>
+       <widget class="MusEWidget::CtrlComboBox" name="cb4" native="true"/>
       </item>
      </layout>
     </widget>
@@ -685,7 +685,7 @@
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
   <customwidget>
-   <class>CtrlComboBox</class>
+   <class>MusEWidget::CtrlComboBox</class>
    <extends>QWidget</extends>
    <header location="global">ctrlcombo.h</header>
   </customwidget>
diff --git a/muse2/muse/plugin.cpp b/muse2/muse/plugin.cpp
index a6a76a21..99d89640 100644
--- a/muse2/muse/plugin.cpp
+++ b/muse2/muse/plugin.cpp
@@ -3466,7 +3466,7 @@ PluginGui::PluginGui(PluginIBase* p)
             QSignalMapper* mapper = new QSignalMapper(this);
             
             // FIXME: There's no unsigned for gui params. We would need to limit nobj to MAXINT.    // p4.0.21
-            // FIXME: Our Slider class uses doubles for values, giving some problems with float conversion.    // p4.0.21
+            // FIXME: Our MusEWidget::Slider class uses doubles for values, giving some problems with float conversion.    // p4.0.21
             
             connect(mapper, SIGNAL(mapped(int)), SLOT(guiParamChanged(int)));
             
@@ -3498,30 +3498,30 @@ PluginGui::PluginGui(PluginIBase* p)
                   gw[nobj].param  = parameter;
                   gw[nobj].type   = -1;
 
-                  if (strcmp(obj->metaObject()->className(), "Slider") == 0) {
+                  if (strcmp(obj->metaObject()->className(), "MusEWidget::Slider") == 0) {
                         gw[nobj].type = GuiWidgets::SLIDER;
-                        ((Slider*)obj)->setId(nobj);
-                        ((Slider*)obj)->setCursorHoming(true);
+                        ((MusEWidget::Slider*)obj)->setId(nobj);
+                        ((MusEWidget::Slider*)obj)->setCursorHoming(true);
                         //for(int i = 0; i < nobj; i++)
                         for(unsigned long i = 0; i < nobj; i++)             // p4.0.21
                         {
                           if(gw[i].type == GuiWidgets::DOUBLE_LABEL && gw[i].param == parameter)
-                            ((DoubleLabel*)gw[i].widget)->setSlider((Slider*)obj);
+                            ((MusEWidget::DoubleLabel*)gw[i].widget)->setSlider((MusEWidget::Slider*)obj);
                         }
                         connect(obj, SIGNAL(sliderMoved(double,int)), mapper, SLOT(map()));
                         connect(obj, SIGNAL(sliderPressed(int)), SLOT(guiSliderPressed(int)));
                         connect(obj, SIGNAL(sliderReleased(int)), SLOT(guiSliderReleased(int)));
                         connect(obj, SIGNAL(sliderRightClicked(const QPoint &, int)), SLOT(guiSliderRightClicked(const QPoint &, int)));
                         }
-                  else if (strcmp(obj->metaObject()->className(), "DoubleLabel") == 0) {
+                  else if (strcmp(obj->metaObject()->className(), "MusEWidget::DoubleLabel") == 0) {
                         gw[nobj].type = GuiWidgets::DOUBLE_LABEL;
-                        ((DoubleLabel*)obj)->setId(nobj);
+                        ((MusEWidget::DoubleLabel*)obj)->setId(nobj);
                         //for(int i = 0; i < nobj; i++)
                         for(unsigned long i = 0; i < nobj; i++)
                         {
                           if(gw[i].type == GuiWidgets::SLIDER && gw[i].param == parameter)
                           {
-                            ((DoubleLabel*)obj)->setSlider((Slider*)gw[i].widget);
+                            ((MusEWidget::DoubleLabel*)obj)->setSlider((MusEWidget::Slider*)gw[i].widget);
                             break;  
                           }  
                         }
@@ -3561,7 +3561,7 @@ PluginGui::PluginGui(PluginIBase* p)
             unsigned long n  = plugin->parameters();   // p4.0.21
             params = new GuiParam[n];
 
-            //int style       = Slider::BgTrough | Slider::BgSlot;
+            //int style       = MusEWidget::Slider::BgTrough | MusEWidget::Slider::BgSlot;
             QFontMetrics fm = fontMetrics();
             int h           = fm.height() + 4;
 
@@ -3581,7 +3581,7 @@ PluginGui::PluginGui(PluginIBase* p)
 
                   if (LADSPA_IS_HINT_TOGGLED(range.HintDescriptor)) {
                         params[i].type = GuiParam::GUI_SWITCH;
-                        CheckBox* cb = new CheckBox(mw, i, "param");
+			MusEWidget::CheckBox* cb = new MusEWidget::CheckBox(mw, i, "param");
                         cb->setId(i);
                         cb->setText(QString(plugin->paramName(i)));
                         cb->setChecked(plugin->param(i) != 0.0);
@@ -3591,13 +3591,13 @@ PluginGui::PluginGui(PluginIBase* p)
                   else {
                         label           = new QLabel(QString(plugin->paramName(i)), 0);
                         params[i].type  = GuiParam::GUI_SLIDER;
-                        params[i].label = new DoubleLabel(val, lower, upper, 0);
+                        params[i].label = new MusEWidget::DoubleLabel(val, lower, upper, 0);
                         params[i].label->setFrame(true);
                         params[i].label->setPrecision(2);
                         params[i].label->setId(i);
 
-                        Slider* s = new Slider(0, "param", Qt::Horizontal,
-                           Slider::None); //, style);
+                        MusEWidget::Slider* s = new MusEWidget::Slider(0, "param", Qt::Horizontal,
+                           MusEWidget::Slider::None); //, style);
                            
                         s->setCursorHoming(true);
                         s->setId(i);
@@ -3607,7 +3607,7 @@ PluginGui::PluginGui(PluginIBase* p)
                           s->setStep(1.0);
                         s->setValue(dval);
                         params[i].actuator = s;
-                        params[i].label->setSlider((Slider*)params[i].actuator);
+                        params[i].label->setSlider((MusEWidget::Slider*)params[i].actuator);
                         }
                   //params[i].actuator->setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Maximum));
                   params[i].actuator->setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed));
@@ -3658,21 +3658,21 @@ PluginGui::PluginGui(PluginIBase* p)
                       getPluginConvertedValues(range, lower, upper, dlower, dupper, dval);
                       label           = new QLabel(QString(plugin->paramOutName(i)), 0);
                       paramsOut[i].type  = GuiParam::GUI_METER;
-                      paramsOut[i].label = new DoubleLabel(val, lower, upper, 0);
+                      paramsOut[i].label = new MusEWidget::DoubleLabel(val, lower, upper, 0);
                       paramsOut[i].label->setFrame(true);
                       paramsOut[i].label->setPrecision(2);
                       paramsOut[i].label->setId(i);
 
-                      Meter::MeterType mType=Meter::LinMeter;
+		      MusEWidget::Meter::MeterType mType=MusEWidget::Meter::LinMeter;
                       if(LADSPA_IS_HINT_INTEGER(range.HintDescriptor))
-                        mType=Meter::DBMeter;
-                      VerticalMeter* m = new VerticalMeter(this, mType);
+                        mType=MusEWidget::Meter::DBMeter;
+		      MusEWidget::VerticalMeter* m = new MusEWidget::VerticalMeter(this, mType);
                       //printf("lower =%f upper=%f dlower=%f dupper=%f\n", lower, upper,dlower,dupper);
 
                       m->setRange(dlower, dupper);
                       m->setVal(dval);
                       paramsOut[i].actuator = m;
-//                      paramsOut[i].label->setSlider((Slider*)params[i].actuator);
+//                      paramsOut[i].label->setMusEWidget::Slider((MusEWidget::Slider*)params[i].actuator);
                       //paramsOut[i].actuator->setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed));
                       label->setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed));
                       paramsOut[i].label->setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed));
@@ -3765,13 +3765,13 @@ void PluginGui::ctrlPressed(int param)
       
       if(params[param].type == GuiParam::GUI_SLIDER)
       {
-        double val = ((Slider*)params[param].actuator)->value();  
+        double val = ((MusEWidget::Slider*)params[param].actuator)->value();  
         if (LADSPA_IS_HINT_LOGARITHMIC(params[param].hint))
               val = pow(10.0, val/20.0);
         else if (LADSPA_IS_HINT_INTEGER(params[param].hint))
               val = rint(val);
         plugin->setParam(param, val);
-        ((DoubleLabel*)params[param].label)->setValue(val);
+        ((MusEWidget::DoubleLabel*)params[param].label)->setValue(val);
         
         // p3.3.43
         //audio->msgSetPluginCtrlVal(((PluginI*)plugin), id, val);
@@ -3788,8 +3788,8 @@ void PluginGui::ctrlPressed(int param)
       }       
       else if(params[param].type == GuiParam::GUI_SWITCH)
       {
-        //double val = (double)((CheckBox*)params[param].actuator)->isChecked();
-        float val = (float)((CheckBox*)params[param].actuator)->isChecked();      // p4.0.21
+        //double val = (double)((MusEWidget::CheckBox*)params[param].actuator)->isChecked();
+        float val = (float)((MusEWidget::CheckBox*)params[param].actuator)->isChecked();      // p4.0.21
         plugin->setParam(param, val);
         
         // p3.3.43
@@ -3831,7 +3831,7 @@ void PluginGui::ctrlReleased(int param)
         
       if(params[param].type == GuiParam::GUI_SLIDER)
       {
-        double val = ((Slider*)params[param].actuator)->value();
+        double val = ((MusEWidget::Slider*)params[param].actuator)->value();
         if (LADSPA_IS_HINT_LOGARITHMIC(params[param].hint))
               val = pow(10.0, val/20.0);
         else if (LADSPA_IS_HINT_INTEGER(params[param].hint))
@@ -3840,7 +3840,7 @@ void PluginGui::ctrlReleased(int param)
       }       
       //else if(params[param].type == GuiParam::GUI_SWITCH)
       //{
-        //double val = (double)((CheckBox*)params[param].actuator)->isChecked();
+        //double val = (double)((MusEWidget::CheckBox*)params[param].actuator)->isChecked();
         // No concept of 'untouching' a checkbox. Remain 'touched' until stop.
         //plugin->track()->stopAutoRecord(genACnum(plugin->id(), param), val);
       //}       
@@ -3878,7 +3878,7 @@ void PluginGui::sliderChanged(double val, int param)
             val = rint(val);
       if (plugin->param(param) != val) {
             plugin->setParam(param, val);
-            ((DoubleLabel*)params[param].label)->setValue(val);
+            ((MusEWidget::DoubleLabel*)params[param].label)->setValue(val);
             }
             
       int id = plugin->id();
@@ -3921,7 +3921,7 @@ void PluginGui::labelChanged(double val, int param)
             dval = rint(val);
       if (plugin->param(param) != val) {
             plugin->setParam(param, val);
-            ((Slider*)params[param].actuator)->setValue(dval);
+            ((MusEWidget::Slider*)params[param].actuator)->setValue(dval);
             }
       
       int id = plugin->id();
@@ -3955,12 +3955,12 @@ void PluginGui::load()
       s += plugin->pluginLabel();
       s += "/";
 
-      QString fn = getOpenFileName(s, MusEGlobal::preset_file_pattern,
+      QString fn = MusEWidget::getOpenFileName(s, MusEGlobal::preset_file_pattern,
          this, tr("MusE: load preset"), 0);
       if (fn.isEmpty())
             return;
       bool popenFlag;
-      FILE* f = fileOpen(this, fn, QString(".pre"), "r", popenFlag, true);
+      FILE* f = MusEWidget::fileOpen(this, fn, QString(".pre"), "r", popenFlag, true);
       if (f == 0)
             return;
 
@@ -4020,13 +4020,13 @@ void PluginGui::save()
       s += plugin->pluginLabel();
       s += "/";
 
-      //QString fn = getSaveFileName(s, MusEGlobal::preset_file_pattern, this,
-      QString fn = getSaveFileName(s, MusEGlobal::preset_file_save_pattern, this,
+      //QString fn = MusEWidget::getSaveFileName(s, MusEGlobal::preset_file_pattern, this,
+      QString fn = MusEWidget::getSaveFileName(s, MusEGlobal::preset_file_save_pattern, this,
         tr("MusE: save preset"));
       if (fn.isEmpty())
             return;
       bool popenFlag;
-      FILE* f = fileOpen(this, fn, QString(".pre"), "w", popenFlag, false, true);
+      FILE* f = MusEWidget::fileOpen(this, fn, QString(".pre"), "w", popenFlag, false, true);
       if (f == 0)
             return;
       Xml xml(f);
@@ -4083,10 +4083,10 @@ void PluginGui::updateValues()
                               lv = sv;
                         }      
                         gp->label->setValue(lv);
-                        ((Slider*)(gp->actuator))->setValue(sv);
+                        ((MusEWidget::Slider*)(gp->actuator))->setValue(sv);
                         }
                   else if (gp->type == GuiParam::GUI_SWITCH) {
-                        ((CheckBox*)(gp->actuator))->setChecked(int(plugin->param(i)));
+                        ((MusEWidget::CheckBox*)(gp->actuator))->setChecked(int(plugin->param(i)));
                         }
                   }
             }
@@ -4101,10 +4101,10 @@ void PluginGui::updateValues()
                   float val = plugin->param(param);
                   switch(type) {
                         case GuiWidgets::SLIDER:
-                              ((Slider*)widget)->setValue(val);    // Note conversion to double
+                              ((MusEWidget::Slider*)widget)->setValue(val);    // Note conversion to double
                               break;
                         case GuiWidgets::DOUBLE_LABEL:
-                              ((DoubleLabel*)widget)->setValue(val);   // Note conversion to double
+                              ((MusEWidget::DoubleLabel*)widget)->setValue(val);   // Note conversion to double
                               break;
                         case GuiWidgets::QCHECKBOX:
                               ((QCheckBox*)widget)->setChecked(int(val));
@@ -4141,7 +4141,7 @@ void PluginGui::updateControls()
                        sv = rint(lv);
                        lv = sv;
                  }
-                 ((VerticalMeter*)(gp->actuator))->setVal(sv);
+                 ((MusEWidget::VerticalMeter*)(gp->actuator))->setVal(sv);
                  gp->label->setValue(lv);
 
                }
@@ -4171,15 +4171,15 @@ void PluginGui::updateControls()
                                   sv = rint(lv);
                                   lv = sv;
                             }      
-                            if(((Slider*)(gp->actuator))->value() != sv)
+                            if(((MusEWidget::Slider*)(gp->actuator))->value() != sv)
                             {
                               //printf("PluginGui::updateControls slider\n");
                               
                               gp->label->blockSignals(true);
-                              ((Slider*)(gp->actuator))->blockSignals(true);
-                              ((Slider*)(gp->actuator))->setValue(sv);
+                              ((MusEWidget::Slider*)(gp->actuator))->blockSignals(true);
+                              ((MusEWidget::Slider*)(gp->actuator))->setValue(sv);
                               gp->label->setValue(lv);
-                              ((Slider*)(gp->actuator))->blockSignals(false);
+                              ((MusEWidget::Slider*)(gp->actuator))->blockSignals(false);
                               gp->label->blockSignals(false);
                             } 
                           }
@@ -4189,13 +4189,13 @@ void PluginGui::updateControls()
                         if( plugin->controllerEnabled(i) && plugin->controllerEnabled2(i) )
                           {
                             bool v = (int)plugin->track()->pluginCtrlVal(genACnum(plugin->id(), i));
-                            if(((CheckBox*)(gp->actuator))->isChecked() != v)
+                            if(((MusEWidget::CheckBox*)(gp->actuator))->isChecked() != v)
                             {
                               //printf("PluginGui::updateControls switch\n");
                               
-                              ((CheckBox*)(gp->actuator))->blockSignals(true);
-                              ((CheckBox*)(gp->actuator))->setChecked(v);
-                              ((CheckBox*)(gp->actuator))->blockSignals(false);
+                              ((MusEWidget::CheckBox*)(gp->actuator))->blockSignals(true);
+                              ((MusEWidget::CheckBox*)(gp->actuator))->setChecked(v);
+                              ((MusEWidget::CheckBox*)(gp->actuator))->blockSignals(false);
                             } 
                           }
                         }
@@ -4213,13 +4213,13 @@ void PluginGui::updateControls()
                               if( plugin->controllerEnabled(param) && plugin->controllerEnabled2(param) )
                               {
                                 double v = plugin->track()->pluginCtrlVal(genACnum(plugin->id(), param));
-                                if(((Slider*)widget)->value() != v)
+                                if(((MusEWidget::Slider*)widget)->value() != v)
                                 {
                                   //printf("PluginGui::updateControls slider\n");
                               
-                                  ((Slider*)widget)->blockSignals(true);
-                                  ((Slider*)widget)->setValue(v);
-                                  ((Slider*)widget)->blockSignals(false);
+                                  ((MusEWidget::Slider*)widget)->blockSignals(true);
+                                  ((MusEWidget::Slider*)widget)->setValue(v);
+                                  ((MusEWidget::Slider*)widget)->blockSignals(false);
                                 }
                               }
                               break;
@@ -4227,13 +4227,13 @@ void PluginGui::updateControls()
                               if( plugin->controllerEnabled(param) && plugin->controllerEnabled2(param) )
                               {
                                 double v = plugin->track()->pluginCtrlVal(genACnum(plugin->id(), param));
-                                if(((DoubleLabel*)widget)->value() != v)
+                                if(((MusEWidget::DoubleLabel*)widget)->value() != v)
                                 {
                                   //printf("PluginGui::updateControls label\n");
                               
-                                  ((DoubleLabel*)widget)->blockSignals(true);
-                                  ((DoubleLabel*)widget)->setValue(v);
-                                  ((DoubleLabel*)widget)->blockSignals(false);
+                                  ((MusEWidget::DoubleLabel*)widget)->blockSignals(true);
+                                  ((MusEWidget::DoubleLabel*)widget)->setValue(v);
+                                  ((MusEWidget::DoubleLabel*)widget)->blockSignals(false);
                                 }
                               }
                               break;
@@ -4292,10 +4292,10 @@ void PluginGui::guiParamChanged(int idx)
       double val = 0.0;
       switch(type) {
             case GuiWidgets::SLIDER:
-                  val = ((Slider*)w)->value();
+                  val = ((MusEWidget::Slider*)w)->value();
                   break;
             case GuiWidgets::DOUBLE_LABEL:
-                  val = ((DoubleLabel*)w)->value();
+                  val = ((MusEWidget::DoubleLabel*)w)->value();
                   break;
             case GuiWidgets::QCHECKBOX:
                   val = double(((QCheckBox*)w)->isChecked());
@@ -4313,10 +4313,10 @@ void PluginGui::guiParamChanged(int idx)
             int type   = gw[i].type;
             switch(type) {
                   case GuiWidgets::SLIDER:
-                        ((Slider*)widget)->setValue(val);
+                        ((MusEWidget::Slider*)widget)->setValue(val);
                         break;
                   case GuiWidgets::DOUBLE_LABEL:
-                        ((DoubleLabel*)widget)->setValue(val);
+                        ((MusEWidget::DoubleLabel*)widget)->setValue(val);
                         break;
                   case GuiWidgets::QCHECKBOX:
                         ((QCheckBox*)widget)->setChecked(int(val));
@@ -4381,13 +4381,13 @@ void PluginGui::guiParamPressed(int idx)
       id = genACnum(id, param);
       
       // NOTE: For this to be of any use, the freeverb gui 2142.ui
-      //  would have to be used, and changed to use CheckBox and ComboBox
+      //  would have to be used, and changed to use MusEWidget::CheckBox and ComboBox
       //  instead of QCheckBox and QComboBox, since both of those would
       //  need customization (Ex. QCheckBox doesn't check on click).
       /*
       switch(type) {
             case GuiWidgets::QCHECKBOX:
-                    double val = (double)((CheckBox*)w)->isChecked();
+                    double val = (double)((MusEWidget::CheckBox*)w)->isChecked();
                     track->startAutoRecord(id, val);
                   break;
             case GuiWidgets::QCOMBOBOX:
@@ -4427,13 +4427,13 @@ void PluginGui::guiParamReleased(int idx)
       id = genACnum(id, param);
       
       // NOTE: For this to be of any use, the freeverb gui 2142.ui
-      //  would have to be used, and changed to use CheckBox and ComboBox
+      //  would have to be used, and changed to use MusEWidget::CheckBox and ComboBox
       //  instead of QCheckBox and QComboBox, since both of those would
       //  need customization (Ex. QCheckBox doesn't check on click).
       /*
       switch(type) {
             case GuiWidgets::QCHECKBOX:
-                    double val = (double)((CheckBox*)w)->isChecked();
+                    double val = (double)((MusEWidget::CheckBox*)w)->isChecked();
                     track->stopAutoRecord(id, param);
                   break;
             case GuiWidgets::QCOMBOBOX:
@@ -4469,7 +4469,7 @@ void PluginGui::guiSliderPressed(int idx)
       
       id = genACnum(id, param);
       
-      double val = ((Slider*)w)->value();
+      double val = ((MusEWidget::Slider*)w)->value();
       plugin->setParam(param, val);
       
       //audio->msgSetPluginCtrlVal(((PluginI*)plugin), id, val);
@@ -4489,10 +4489,10 @@ void PluginGui::guiSliderPressed(int idx)
             int type   = gw[i].type;
             switch(type) {
                   case GuiWidgets::SLIDER:
-                        ((Slider*)widget)->setValue(val);
+                        ((MusEWidget::Slider*)widget)->setValue(val);
                         break;
                   case GuiWidgets::DOUBLE_LABEL:
-                        ((DoubleLabel*)widget)->setValue(val);
+                        ((MusEWidget::DoubleLabel*)widget)->setValue(val);
                         break;
                   case GuiWidgets::QCHECKBOX:
                         ((QCheckBox*)widget)->setChecked(int(val));
@@ -4528,7 +4528,7 @@ void PluginGui::guiSliderReleased(int idx)
       
       id = genACnum(id, param);
       
-      double val = ((Slider*)w)->value();
+      double val = ((MusEWidget::Slider*)w)->value();
       track->stopAutoRecord(id, val);
       }
     
@@ -4550,10 +4550,10 @@ void PluginGui::guiSliderRightClicked(const QPoint &p, int idx)
 //---------------------------------------------------------
 QWidget* PluginLoader::createWidget(const QString & className, QWidget * parent, const QString & name)
 {
-  if(className == QString("DoubleLabel"))
-    return new DoubleLabel(parent, name.toLatin1().constData()); 
-  if(className == QString("Slider"))
-    return new Slider(parent, name.toLatin1().constData(), Qt::Horizontal); 
+  if(className == QString("MusEWidget::DoubleLabel"))
+    return new MusEWidget::DoubleLabel(parent, name.toLatin1().constData()); 
+  if(className == QString("MusEWidget::Slider"))
+    return new MusEWidget::Slider(parent, name.toLatin1().constData(), Qt::Horizontal); 
 
   return QUiLoader::createWidget(className, parent, name);
 };
diff --git a/muse2/muse/plugin.h b/muse2/muse/plugin.h
index f70f6086..2a98760e 100644
--- a/muse2/muse/plugin.h
+++ b/muse2/muse/plugin.h
@@ -61,8 +61,11 @@ class QToolButton;
 class QTreeWidget;
 
 class Xml;
-class Slider;
+
+namespace MusEWidget {
 class DoubleLabel;
+}
+
 class AudioTrack;
 class MidiController;
 
@@ -265,7 +268,7 @@ struct GuiParam {
       int type;
       int hint;
       
-      DoubleLabel* label;
+      MusEWidget::DoubleLabel* label;
       QWidget* actuator;  // Slider or Toggle Button (SWITCH)
       };
 
diff --git a/muse2/muse/song.cpp b/muse2/muse/song.cpp
index f5a5ed90..65bfec13 100644
--- a/muse2/muse/song.cpp
+++ b/muse2/muse/song.cpp
@@ -2580,7 +2580,7 @@ int Song::execAutomationCtlPopup(AudioTrack* track, const QPoint& menupos, int a
   //menu->setItemEnabled(HEADER, false);
   //MenuTitleItem* title = new MenuTitleItem(tr("Automation:")); ddskrjo
   //menu->insertItem(title, HEADER, HEADER); ddskrjo
-  menu->addAction(new MenuTitleItem(tr("Automation:"), menu));
+  menu->addAction(new MusEWidget::MenuTitleItem(tr("Automation:"), menu));
   
   //menu->insertSeparator(SEP1);
   
diff --git a/muse2/muse/sync.cpp b/muse2/muse/sync.cpp
index afc378af..66055aab 100644
--- a/muse2/muse/sync.cpp
+++ b/muse2/muse/sync.cpp
@@ -195,7 +195,7 @@ void MidiSyncInfo::setTime()
   // Note: CurTime() makes a system call to gettimeofday(), 
   //  which apparently can be slow in some cases. So I avoid calling this function
   //  too frequently by calling it (at the heartbeat rate) in Song::beat().  T356
-  double t = curTime();
+  double t = MusEUtil::curTime();
   
   if(_clockTrig)
   {
@@ -743,7 +743,7 @@ void MidiSeq::mtcInputFull(int port, const unsigned char* p, int n)
       if (p[3] != 1) {
             if (p[3] != 2) {   // silently ignore user bits
                   printf("unknown mtc msg subtype 0x%02x\n", p[3]);
-                  dump(p, n);
+                  MusEUtil::dump(p, n);
                   }
             return;
             }
@@ -798,7 +798,7 @@ void MidiSeq::nonRealtimeSystemSysex(int /*port*/, const unsigned char* p, int n
                   break;
             default:
                   printf("unknown NRT Msg 0x%02x\n", p[3]);
-                  dump(p, n);
+                  MusEUtil::dump(p, n);
                   break;
            }
       }
@@ -938,7 +938,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   if(port != curMidiSyncInPort)
                     break;
                   
-                  //printf("midi clock:%f\n", curTime());
+                  //printf("midi clock:%f\n", MusEUtil::curTime());
                   
                   // Re-transmit clock to other devices if clock out turned on.
                   // Must be careful not to allow more than one clock input at a time.
@@ -966,7 +966,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   if(playStateExt)
                   {
                     lastExtMidiSyncTime = curExtMidiSyncTime;
-                    curExtMidiSyncTime = curTime();
+                    curExtMidiSyncTime = MusEUtil::curTime();
                     int div = MusEConfig::config.division/24;
                     midiExtSyncTicks += div;
                     lastExtMidiSyncTick = curExtMidiSyncTick;
@@ -975,7 +975,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   
 //BEGIN : Original code:
                   /*
-                  double mclock0 = curTime();
+                  double mclock0 = MusEUtil::curTime();
                   // Difference in time last 2 rounds:
                   double tdiff0   = mclock0 - mclock1;
                   double tdiff1   = mclock1 - mclock2;
@@ -1089,7 +1089,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   
 //BEGIN : Using external tempo map:
                   /*
-                  double mclock0 = curTime();
+                  double mclock0 = MusEUtil::curTime();
                   // Difference in time last 2 rounds:
                   double tdiff0   = mclock0 - mclock1;
                   double tdiff1   = mclock1 - mclock2;
@@ -1248,7 +1248,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   if (debugSync)
                         printf("   start\n");
                   
-                  //printf("midi start:%f\n", curTime());
+                  //printf("midi start:%f\n", MusEUtil::curTime());
                   
                   if (1 /* !audio->isPlaying()*/ /*state == IDLE*/) {
                         if (!MusEGlobal::checkAudioDevice()) return;
@@ -1297,7 +1297,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                   if (debugSync)
                         printf("realtimeSystemInput continue\n");
                   
-                  //printf("continue:%f\n", curTime());
+                  //printf("continue:%f\n", MusEUtil::curTime());
                   
                   if (1 /* !audio->isPlaying() */ /*state == IDLE */) {
                         //unsigned curFrame = audio->curFrame();
@@ -1332,7 +1332,7 @@ void MidiSeq::realtimeSystemInput(int port, int c)
                     //lastStoppedBeat = (audio->tickPos() * 4) / MusEConfig::config.division;
                     //curExtMidiSyncTick = (MusEConfig::config.division * lastStoppedBeat) / 4;
                     
-                    //printf("stop:%f\n", curTime());
+                    //printf("stop:%f\n", MusEUtil::curTime());
                     
                     if (audio->isPlaying() /*state == PLAY*/) {
                           audio->msgPlay(false);
diff --git a/muse2/muse/synth.cpp b/muse2/muse/synth.cpp
index 467aca72..5435f8ce 100644
--- a/muse2/muse/synth.cpp
+++ b/muse2/muse/synth.cpp
@@ -911,7 +911,7 @@ const char* MessSynthIF::getPatchName(int channel, int prog, MType type, bool dr
 //   populatePatchPopup
 //---------------------------------------------------------
 
-void MessSynthIF::populatePatchPopup(PopupMenu* menu, int ch, MType, bool)
+void MessSynthIF::populatePatchPopup(MusEWidget::PopupMenu* menu, int ch, MType, bool)
       {
       menu->clear();
       const MidiPatch* mp = _mess->getPatchInfo(ch, 0);
diff --git a/muse2/muse/synth.h b/muse2/muse/synth.h
index 43ab9370..a76d798d 100644
--- a/muse2/muse/synth.h
+++ b/muse2/muse/synth.h
@@ -41,7 +41,9 @@
 #define SYNTH_MIDI_STATE_SAVE_VERSION 2
 
 //class QMenu;
+namespace MusEWidget {
 class PopupMenu;
+}
 
 //class MidiEvent;
 class MidiPlayEvent;
@@ -175,7 +177,7 @@ class SynthIF {
       virtual const char* getPatchName(int, int, int, bool) const = 0;
       virtual const char* getPatchName(int, int, MType, bool) = 0;
       //virtual void populatePatchPopup(QMenu*, int, MType, bool) = 0;
-      virtual void populatePatchPopup(PopupMenu*, int, MType, bool) = 0;
+      virtual void populatePatchPopup(MusEWidget::PopupMenu*, int, MType, bool) = 0;
       virtual void write(int level, Xml& xml) const = 0;
       virtual float getParameter(unsigned long idx) const = 0;        
       virtual void setParameter(unsigned long idx, float value) = 0;  
@@ -260,7 +262,7 @@ class SynthI : public AudioTrack, public MidiDevice,
             }
             
       //virtual void populatePatchPopup(QMenu* m, int i, MType t, bool d) {
-      virtual void populatePatchPopup(PopupMenu* m, int i, MType t, bool d) {
+      virtual void populatePatchPopup(MusEWidget::PopupMenu* m, int i, MType t, bool d) {
             _sif->populatePatchPopup(m, i, t, d);
             }
       
@@ -350,7 +352,7 @@ class MessSynthIF : public SynthIF {
       virtual const char* getPatchName(int, int, int, bool) const { return ""; }
       virtual const char* getPatchName(int, int, MType, bool);
       //virtual void populatePatchPopup(QMenu*, int, MType, bool);
-      virtual void populatePatchPopup(PopupMenu*, int, MType, bool);
+      virtual void populatePatchPopup(MusEWidget::PopupMenu*, int, MType, bool);
       virtual void write(int level, Xml& xml) const;
       virtual float getParameter(unsigned long) const { return 0.0; }
       virtual void setParameter(unsigned long, float) {}
diff --git a/muse2/muse/ticksynth.cpp b/muse2/muse/ticksynth.cpp
index 41e0a170..57ed6272 100644
--- a/muse2/muse/ticksynth.cpp
+++ b/muse2/muse/ticksynth.cpp
@@ -109,7 +109,7 @@ class MetronomeSynthIF : public SynthIF
       virtual const char* getPatchName(int, int, int, bool) const { return ""; }
       virtual const char* getPatchName(int, int, MType, bool) { return ""; }
       //virtual void populatePatchPopup(QMenu*, int, MType, bool) {};
-      virtual void populatePatchPopup(PopupMenu*, int, MType, bool) {};
+      virtual void populatePatchPopup(MusEWidget::PopupMenu*, int, MType, bool) {};
       virtual void write(int, Xml&) const {}
       virtual float getParameter(unsigned long) const  { return 0.0; }
       virtual void setParameter(unsigned long, float) {}
diff --git a/muse2/muse/transport.cpp b/muse2/muse/transport.cpp
index e51a1676..72415995 100644
--- a/muse2/muse/transport.cpp
+++ b/muse2/muse/transport.cpp
@@ -139,12 +139,12 @@ TempoSig::TempoSig(QWidget* parent)
       f->setLineWidth(1);
 
       // ORCAN get rid of l1 l2 last arguments (parent)?
-      l1 = new DoubleLabel(120.0, 20.0, 400.0, 0);
+      l1 = new MusEWidget::DoubleLabel(120.0, 20.0, 400.0, 0);
       l1->setFocusPolicy(Qt::NoFocus);
       l1->setSpecialText(QString("extern"));
       vb2->addWidget(l1);
       
-      l2 = new SigLabel(4, 4, 0);
+      l2 = new MusEWidget::SigLabel(4, 4, 0);
       l2->setFocusPolicy(Qt::NoFocus);
       vb2->addWidget(l2);
 
diff --git a/muse2/muse/transport.h b/muse2/muse/transport.h
index 0b5a4fd1..abe1534f 100644
--- a/muse2/muse/transport.h
+++ b/muse2/muse/transport.h
@@ -40,8 +40,11 @@ class QLabel;
 class QSlider;
 class QToolButton;
 
+namespace MusEWidget {
 class DoubleLabel;
 class SigLabel;
+}
+
 class Pos;
 
 //---------------------------------------------------------
@@ -51,8 +54,8 @@ class Pos;
 class TempoSig : public QWidget {
     Q_OBJECT
     
-      DoubleLabel* l1;
-      SigLabel* l2;
+      MusEWidget::DoubleLabel* l1;
+      MusEWidget::SigLabel* l2;
       QLabel* l3;
       
 
diff --git a/muse2/muse/wave.cpp b/muse2/muse/wave.cpp
index 584d2882..6f97a3f0 100644
--- a/muse2/muse/wave.cpp
+++ b/muse2/muse/wave.cpp
@@ -822,8 +822,8 @@ void MusE::importWave()
               "a wave track"));
             return;
             }
-      //QString fn = getOpenFileName(MusEGlobal::lastWavePath, audioFilePattern, this,
-      QString fn = getOpenFileName(MusEGlobal::lastWavePath, MusEGlobal::audio_file_pattern, this,
+      //QString fn = MusEWidget::getOpenFileName(MusEGlobal::lastWavePath, audioFilePattern, this,
+      QString fn = MusEWidget::getOpenFileName(MusEGlobal::lastWavePath, MusEGlobal::audio_file_pattern, this,
          tr("Import Wave File"), 0);                                    
       if (!fn.isEmpty()) {
             MusEGlobal::lastWavePath = fn;
diff --git a/muse2/muse/waveedit/waveedit.cpp b/muse2/muse/waveedit/waveedit.cpp
index 7ba69e95..00c68cef 100644
--- a/muse2/muse/waveedit/waveedit.cpp
+++ b/muse2/muse/waveedit/waveedit.cpp
@@ -201,10 +201,10 @@ WaveEdit::WaveEdit(PartList* pl)
       tb1->addWidget(label);
       label->setAlignment(Qt::AlignRight|Qt::AlignVCenter);
       label->setIndent(3);
-      pos1 = new PosLabel(0);
+      pos1 = new MusEWidget::PosLabel(0);
       pos1->setFixedHeight(22);
       tb1->addWidget(pos1);
-      pos2 = new PosLabel(0);
+      pos2 = new MusEWidget::PosLabel(0);
       pos2->setFixedHeight(22);
       pos2->setSmpte(true);
       tb1->addWidget(pos2);
@@ -224,7 +224,7 @@ WaveEdit::WaveEdit(PartList* pl)
             xscale = -8000;
             }
 
-      hscroll = new ScrollScale(1, -32768, xscale, 10000, Qt::Horizontal, mainw, 0, true, 10000.0);
+      hscroll = new MusEWidget::ScrollScale(1, -32768, xscale, 10000, Qt::Horizontal, mainw, 0, true, 10000.0);
       view    = new WaveView(this, mainw, xscale, yscale);
       wview   = view;   // HACK!
 
@@ -235,7 +235,7 @@ WaveEdit::WaveEdit(PartList* pl)
       ymag->setPageStep(256);
       ymag->setValue(yscale);
        
-      time                 = new MTScale(&_raster, mainw, xscale, true);
+      time                 = new MusEWidget::MTScale(&_raster, mainw, xscale, true);
       ymag->setFixedWidth(16);
       connect(view, SIGNAL(mouseWheelMoved(int)), this, SLOT(moveVerticalSlider(int)));
       connect(ymag, SIGNAL(valueChanged(int)), view, SLOT(setYScale(int)));
@@ -248,7 +248,7 @@ WaveEdit::WaveEdit(PartList* pl)
       mainGrid->setColumnStretch(0, 100);
 
       mainGrid->addWidget(time,   0, 0, 1, 2);
-      mainGrid->addWidget(hLine(mainw),    1, 0, 1, 2);
+      mainGrid->addWidget(MusEUtil::hLine(mainw),    1, 0, 1, 2);
       mainGrid->addWidget(view,    2, 0);
       mainGrid->addWidget(ymag,    2, 1);
       mainGrid->addWidget(hscroll, 3, 0);
@@ -551,11 +551,11 @@ void WaveEdit::moveVerticalSlider(int val)
 void WaveEdit::horizontalZoomIn()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl < 23)
         zoomlvl++;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
@@ -564,11 +564,11 @@ void WaveEdit::horizontalZoomIn()
 void WaveEdit::horizontalZoomOut()
 {
   int mag = hscroll->mag();
-  int zoomlvl = ScrollScale::getQuickZoomLevel(mag);
+  int zoomlvl = MusEWidget::ScrollScale::getQuickZoomLevel(mag);
   if (zoomlvl > 1)
         zoomlvl--;
 
-  int newmag = ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
+  int newmag = MusEWidget::ScrollScale::convertQuickZoomLevelToMag(zoomlvl);
 
   hscroll->setMag(newmag);
 
diff --git a/muse2/muse/waveedit/waveedit.h b/muse2/muse/waveedit/waveedit.h
index 802b9389..3e5a5a61 100644
--- a/muse2/muse/waveedit/waveedit.h
+++ b/muse2/muse/waveedit/waveedit.h
@@ -38,11 +38,14 @@ class PartList;
 class WaveView;
 class ScrollScale;
 class QSlider;
-class PosLabel;
 class QResizeEvent;
 class SNode;
 class QAction;
 
+namespace MusEWidget {
+class PosLabel;
+}
+
 //---------------------------------------------------------
 //   WaveEdit
 //---------------------------------------------------------
@@ -55,8 +58,8 @@ class WaveEdit : public MidiEditor {
       QToolBar* tools;
       QToolBar* tb1;
       QToolButton* solo;
-      PosLabel* pos1;
-      PosLabel* pos2;
+      MusEWidget::PosLabel* pos1;
+      MusEWidget::PosLabel* pos2;
       QAction* selectAllAction;
       QAction* selectNoneAction;
       QAction* cutAction;
diff --git a/muse2/muse/waveedit/waveview.cpp b/muse2/muse/waveedit/waveview.cpp
index b28b1914..2b3ddfbf 100644
--- a/muse2/muse/waveedit/waveview.cpp
+++ b/muse2/muse/waveedit/waveview.cpp
@@ -48,7 +48,7 @@ bool modifyWarnedYet = false;
 //---------------------------------------------------------
 
 WaveView::WaveView(MidiEditor* pr, QWidget* parent, int xscale, int yscale)
-   : View(parent, xscale, 1)
+   : MusEWidget::View(parent, xscale, 1)
       {
       editor = pr;
       setVirt(true);
diff --git a/muse2/muse/waveedit/waveview.h b/muse2/muse/waveedit/waveview.h
index a8108dbe..664fcb51 100644
--- a/muse2/muse/waveedit/waveview.h
+++ b/muse2/muse/waveedit/waveview.h
@@ -48,7 +48,7 @@ typedef std::list<WaveEventSelection>::iterator iWaveSelection;
 //   WaveView
 //---------------------------------------------------------
 
-class WaveView : public View {
+class WaveView : public MusEWidget::View {
       Q_OBJECT
     
       MidiEditor* editor;
diff --git a/muse2/muse/widgets/CMakeLists.txt b/muse2/muse/widgets/CMakeLists.txt
index 8f2f9420..48299f4a 100644
--- a/muse2/muse/widgets/CMakeLists.txt
+++ b/muse2/muse/widgets/CMakeLists.txt
@@ -184,7 +184,7 @@ file (GLOB widgets_source_files
       tb1.cpp   
       tempolabel.cpp 
       tools.cpp 
-      ttoolbar.cpp 
+      # ttoolbar.cpp 
       ttoolbutton.cpp 
       unusedwavefiles.cpp
       utils.cpp
diff --git a/muse2/muse/widgets/checkbox.cpp b/muse2/muse/widgets/checkbox.cpp
index e707fcbc..def23730 100644
--- a/muse2/muse/widgets/checkbox.cpp
+++ b/muse2/muse/widgets/checkbox.cpp
@@ -24,6 +24,8 @@
 
 #include <QMouseEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   CheckBox
 //---------------------------------------------------------
@@ -71,4 +73,4 @@ void CheckBox::mouseReleaseEvent(QMouseEvent *e)
   emit checkboxReleased(_id);
 }
 
-
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/checkbox.h b/muse2/muse/widgets/checkbox.h
index 19022557..d50b31d3 100644
--- a/muse2/muse/widgets/checkbox.h
+++ b/muse2/muse/widgets/checkbox.h
@@ -25,6 +25,7 @@
 
 #include <QCheckBox>
 
+namespace MusEWidget {
 
 //---------------------------------------------------------
 //   CheckBox
@@ -55,5 +56,7 @@ class CheckBox : public QCheckBox {
       void setId(int i)    { _id = i; }
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/citem.cpp b/muse2/muse/widgets/citem.cpp
index ebca00fc..1fe861a0 100644
--- a/muse2/muse/widgets/citem.cpp
+++ b/muse2/muse/widgets/citem.cpp
@@ -24,6 +24,8 @@
 #include "citem.h"
 #include <stdio.h>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   CItem
 //---------------------------------------------------------
@@ -106,3 +108,4 @@ void CItemList::add(CItem* item)
       std::multimap<int, CItem*, std::less<int> >::insert(std::pair<const int, CItem*> (item->bbox().x(), item));
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/citem.h b/muse2/muse/widgets/citem.h
index 659b898b..bdeca213 100644
--- a/muse2/muse/widgets/citem.h
+++ b/muse2/muse/widgets/citem.h
@@ -32,6 +32,8 @@
 class Event;
 class Part;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   CItem
 //    virtuelle Basisklasse fr alle Canvas Item's
@@ -101,5 +103,7 @@ class CItemList: public std::multimap<int, CItem*, std::less<int> > {
       CItem* find(const QPoint& pos) const;
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/comboQuant.cpp b/muse2/muse/widgets/comboQuant.cpp
index b24ca673..c455851a 100644
--- a/muse2/muse/widgets/comboQuant.cpp
+++ b/muse2/muse/widgets/comboQuant.cpp
@@ -28,6 +28,8 @@
 
 #include "comboQuant.h"
 
+namespace MusEWidget {
+
 static int quantTable[] = {
       1, 16, 32,  64, 128, 256,  512, 1024,
       1, 24, 48,  96, 192, 384,  768, 1536,
@@ -107,3 +109,4 @@ void ComboQuant::setValue(int val)
       setCurrentIndex(0);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/comboQuant.h b/muse2/muse/widgets/comboQuant.h
index 0a9460b8..8e1d80ea 100644
--- a/muse2/muse/widgets/comboQuant.h
+++ b/muse2/muse/widgets/comboQuant.h
@@ -30,6 +30,8 @@
 class QWidget;
 class QTableWidget;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   ComboQuant
 //---------------------------------------------------------
@@ -50,5 +52,7 @@ class ComboQuant : public QComboBox {
       void setValue(int val);
       };
 
+}
+
 #endif
 
diff --git a/muse2/muse/widgets/combobox.cpp b/muse2/muse/widgets/combobox.cpp
index c151e3ae..d32685d0 100644
--- a/muse2/muse/widgets/combobox.cpp
+++ b/muse2/muse/widgets/combobox.cpp
@@ -26,6 +26,8 @@
 
 #include "combobox.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   ComboBox
 //---------------------------------------------------------
@@ -103,3 +105,4 @@ void ComboBox::addAction(const QString& s, int id)
       itemlist << id;
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/combobox.h b/muse2/muse/widgets/combobox.h
index b2f973dc..8de82989 100644
--- a/muse2/muse/widgets/combobox.h
+++ b/muse2/muse/widgets/combobox.h
@@ -28,6 +28,8 @@
 class QMenu;
 class QSignalMapper;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   ComboBox
 //---------------------------------------------------------
@@ -57,6 +59,8 @@ class ComboBox : public QToolButton {
       void addAction(const QString& s, int id = -1);
       };
 
+} // namespace MusEWidget
+
 #endif
 
 
diff --git a/muse2/muse/widgets/comment.cpp b/muse2/muse/widgets/comment.cpp
index 926cfbb3..99fd8487 100644
--- a/muse2/muse/widgets/comment.cpp
+++ b/muse2/muse/widgets/comment.cpp
@@ -26,6 +26,8 @@
 
 #include <QWidget>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Comment
 //---------------------------------------------------------
@@ -102,3 +104,4 @@ void TrackComment::setText(const QString& s)
       song->update(SC_TRACK_MODIFIED);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/comment.h b/muse2/muse/widgets/comment.h
index 7aa32551..4fc0bd33 100644
--- a/muse2/muse/widgets/comment.h
+++ b/muse2/muse/widgets/comment.h
@@ -29,6 +29,8 @@ class Xml;
 class Track;
 class QWidget;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Comment
 //---------------------------------------------------------
@@ -66,5 +68,7 @@ class TrackComment : public Comment {
       TrackComment(Track*, QWidget*);
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/ctrlcombo.cpp b/muse2/muse/widgets/ctrlcombo.cpp
index e95b0ca6..61a7e50f 100644
--- a/muse2/muse/widgets/ctrlcombo.cpp
+++ b/muse2/muse/widgets/ctrlcombo.cpp
@@ -23,6 +23,8 @@
 
 #include "ctrlcombo.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   CtrlComboBox
 //---------------------------------------------------------
@@ -69,3 +71,4 @@ CtrlComboBox::CtrlComboBox(QWidget* parent)
              insertItem(i, QString(ctxt[i]));
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/ctrlcombo.h b/muse2/muse/widgets/ctrlcombo.h
index dfdf42ca..dca3d91e 100644
--- a/muse2/muse/widgets/ctrlcombo.h
+++ b/muse2/muse/widgets/ctrlcombo.h
@@ -26,12 +26,15 @@
 
 #include <QComboBox>
 
+namespace MusEWidget {
+
 class CtrlComboBox : public QComboBox {
       Q_OBJECT
    public:
       CtrlComboBox(QWidget* parent);
       };
 
+} // namespace MusEWidget
 
 #endif
 
diff --git a/muse2/muse/widgets/dentry.cpp b/muse2/muse/widgets/dentry.cpp
index 15f90d09..000dec50 100644
--- a/muse2/muse/widgets/dentry.cpp
+++ b/muse2/muse/widgets/dentry.cpp
@@ -35,6 +35,8 @@
 #define TIMEC2    20
 #define TIMER4    50
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Dentry
 //    lineedit double values
@@ -255,3 +257,4 @@ void Dentry::setValue(double v)
       val = v;
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/dentry.h b/muse2/muse/widgets/dentry.h
index 5cf7d7a3..1e429187 100644
--- a/muse2/muse/widgets/dentry.h
+++ b/muse2/muse/widgets/dentry.h
@@ -27,6 +27,8 @@
 
 #include "sliderbase.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Dentry
 //---------------------------------------------------------
@@ -85,4 +87,7 @@ class Dentry : public QLineEdit {
       SliderBase* slider() const            { return _slider; }
       void setSlider(SliderBase* s)         { _slider = s; }
       };
+
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/didyouknow.h b/muse2/muse/widgets/didyouknow.h
index b60e9520..212e9254 100644
--- a/muse2/muse/widgets/didyouknow.h
+++ b/muse2/muse/widgets/didyouknow.h
@@ -23,6 +23,7 @@
 
 class QDialog;
 
+namespace MusEWidget {
 
 //---------------------------------------------------------
 //   DidYouKnowWidget
@@ -36,3 +37,5 @@ class DidYouKnowWidget : public QDialog, public Ui::DidYouKnow
    public:
       DidYouKnowWidget(QDialog *parent = 0) : QDialog(parent) { setupUi(this); }
 };
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/dimap.cpp b/muse2/muse/widgets/dimap.cpp
index b6a2c9a3..7fff9115 100644
--- a/muse2/muse/widgets/dimap.cpp
+++ b/muse2/muse/widgets/dimap.cpp
@@ -26,6 +26,8 @@
 #include "dimap.h"
 #include "mmath.h"
 
+namespace MusEWidget {
+
 const double DiMap::LogMin = 1.0e-150;
 const double DiMap::LogMax = 1.0e150;
 
@@ -111,7 +113,7 @@ DiMap::~DiMap()
 
 bool DiMap::contains(double x) const
       {
-      return ( (x >= qwtMin(d_x1, d_x1)) && (x <= qwtMax(d_x1, d_x2)));
+      return ( (x >= MusEUtil::qwtMin(d_x1, d_x1)) && (x <= MusEUtil::qwtMax(d_x1, d_x2)));
       }
 
 //------------------------------------------------------------
@@ -128,7 +130,7 @@ bool DiMap::contains(double x) const
 
 bool DiMap::contains(int x) const
       {
-      return ( (x >= qwtMin(d_y1, d_y1)) && (x <= qwtMax(d_y1, d_y2)));
+      return ( (x >= MusEUtil::qwtMin(d_y1, d_y1)) && (x <= MusEUtil::qwtMax(d_y1, d_y2)));
       }
 
 //------------------------------------------------------------
@@ -267,10 +269,10 @@ double DiMap::invTransform(int y) const
 
 int DiMap::limTransform(double x) const
       {
-      if ( x > qwtMax(d_x1, d_x2) )
-            x = qwtMax(d_x1, d_x2);
-      else if ( x < qwtMin(d_x1, d_x2))
-            x = qwtMin(d_x1, d_x2);
+      if ( x > MusEUtil::qwtMax(d_x1, d_x2) )
+            x = MusEUtil::qwtMax(d_x1, d_x2);
+      else if ( x < MusEUtil::qwtMin(d_x1, d_x2))
+            x = MusEUtil::qwtMin(d_x1, d_x2);
       return transform(x);
       }
 
@@ -317,3 +319,5 @@ void DiMap::newFactor()
       else
             d_cnv = 0.0;
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/dimap.h b/muse2/muse/widgets/dimap.h
index faa23ab6..fc522b4e 100644
--- a/muse2/muse/widgets/dimap.h
+++ b/muse2/muse/widgets/dimap.h
@@ -27,6 +27,8 @@
 
 #include <QtGlobal>
 
+namespace MusEWidget {
+
 class DiMap
       {
       double d_x1, d_x2;  // double interval boundaries
@@ -63,4 +65,6 @@ class DiMap
       bool logarithmic() const { return d_log;}
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/doublelabel.cpp b/muse2/muse/widgets/doublelabel.cpp
index 043944f5..00d9e2fa 100644
--- a/muse2/muse/widgets/doublelabel.cpp
+++ b/muse2/muse/widgets/doublelabel.cpp
@@ -24,6 +24,8 @@
 
 #include "doublelabel.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   DoubleLabel
 //---------------------------------------------------------
@@ -206,3 +208,5 @@ QSize DoubleLabel::minimumSizeHint() const
 {
   return sizeHint();
 }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/doublelabel.h b/muse2/muse/widgets/doublelabel.h
index 20732391..d02546e6 100644
--- a/muse2/muse/widgets/doublelabel.h
+++ b/muse2/muse/widgets/doublelabel.h
@@ -25,6 +25,8 @@
 
 #include "dentry.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   DoubleLabel
 //---------------------------------------------------------
@@ -73,4 +75,6 @@ class DoubleLabel : public Dentry {
       void setSuffix(const QString& s)      { _suffix = s; }
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/drange.cpp b/muse2/muse/widgets/drange.cpp
index 04b51905..18868b2c 100644
--- a/muse2/muse/widgets/drange.cpp
+++ b/muse2/muse/widgets/drange.cpp
@@ -29,6 +29,8 @@
 #include "mmath.h"
 #include "drange.h"
 
+namespace MusEWidget {
+
 const double DoubleRange::MinRelStep = 1.0e-10;
 const double DoubleRange::DefaultRelStep = 1.0e-2;
 const double DoubleRange::MinEps = 1.0e-10;
@@ -71,8 +73,8 @@ void DoubleRange::setNewValue(double x, bool align)
       {
       d_prevValue = d_value;
 
-      double vmin = qwtMin(d_minValue, d_maxValue);
-      double vmax = qwtMax(d_minValue, d_maxValue);
+      double vmin = MusEUtil::qwtMin(d_minValue, d_maxValue);
+      double vmax = MusEUtil::qwtMax(d_minValue, d_maxValue);
 
       // Range check
 
@@ -104,11 +106,11 @@ void DoubleRange::setNewValue(double x, bool align)
                   d_value = d_minValue;
 	
             // correct rounding error at the border
-            if (fabs(d_value - d_maxValue) < MinEps * qwtAbs(d_step))
+            if (fabs(d_value - d_maxValue) < MinEps * MusEUtil::qwtAbs(d_step))
                   d_value = d_maxValue;
 
             // correct rounding error if value = 0
-            if (fabs(d_value) < MinEps * qwtAbs(d_step))
+            if (fabs(d_value) < MinEps * MusEUtil::qwtAbs(d_step))
                   d_value = 0.0;
             }
       if (d_prevValue != d_value)
@@ -177,7 +179,7 @@ void DoubleRange::setRange(double vmin, double vmax, double vstep, int pageSize)
       //
       // limit page size
       //
-      d_pageSize = qwtLim(pageSize,0, int(qwtAbs((d_maxValue - d_minValue) / d_step)));
+      d_pageSize = MusEUtil::qwtLim(pageSize,0, int(MusEUtil::qwtAbs((d_maxValue - d_minValue) / d_step)));
 
       //
       // If the value lies out of the range, it
@@ -271,6 +273,7 @@ void DoubleRange::incPages(int nPages)
 
 double DoubleRange::step() const
       {
-      return qwtAbs(d_step);
+      return MusEUtil::qwtAbs(d_step);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/drange.h b/muse2/muse/widgets/drange.h
index 3b5971cf..938b70c6 100644
--- a/muse2/muse/widgets/drange.h
+++ b/muse2/muse/widgets/drange.h
@@ -25,6 +25,8 @@
 #ifndef __DOUBLE_RANGE_H__
 #define __DOUBLE_RANGE_H__
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   DoubleRange
 //---------------------------------------------------------
@@ -77,4 +79,6 @@ class DoubleRange
       double step() const;
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/editnotedialogbase.ui b/muse2/muse/widgets/editnotedialogbase.ui
index b19efc49..165bdf02 100644
--- a/muse2/muse/widgets/editnotedialogbase.ui
+++ b/muse2/muse/widgets/editnotedialogbase.ui
@@ -156,7 +156,7 @@
     </widget>
    </item>
    <item row="2" column="1">
-    <widget class="PitchEdit" name="pl" native="true"/>
+    <widget class="MusEWidget::PitchEdit" name="pl" native="true"/>
    </item>
   </layout>
  </widget>
@@ -169,7 +169,7 @@
    <container>0</container>
   </customwidget>
   <customwidget>
-   <class>PitchEdit</class>
+   <class>MusEWidget::PitchEdit</class>
    <extends>QWidget</extends>
    <header>pitchedit.h</header>
   </customwidget>
diff --git a/muse2/muse/widgets/filedialog.cpp b/muse2/muse/widgets/filedialog.cpp
index ada1505c..0df0fa7f 100644
--- a/muse2/muse/widgets/filedialog.cpp
+++ b/muse2/muse/widgets/filedialog.cpp
@@ -34,6 +34,7 @@
 #include "../globals.h"
 #include "gconfig.h"
 
+namespace MusEWidget {
 
 MFileDialog::ViewType MFileDialog::lastViewUsed = GLOBAL_VIEW;
 //QString MFileDialog::lastUserDir = "";
@@ -564,3 +565,4 @@ FILE* MFile::open(const char* mode, const QStringList& pattern,
       return f;
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/filedialog.h b/muse2/muse/widgets/filedialog.h
index a2beeb3b..74297210 100644
--- a/muse2/muse/widgets/filedialog.h
+++ b/muse2/muse/widgets/filedialog.h
@@ -26,6 +26,8 @@
 
 class QStringList;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   FileDialogButtonsWidget
 //   Wrapper around Ui::FileDialogButtons
@@ -123,3 +125,4 @@ class MFile {
          bool warnIfOverwrite, const QString& caption);
       };
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/function_dialogs/crescendo.cpp b/muse2/muse/widgets/function_dialogs/crescendo.cpp
index 53d6238d..f8245b24 100644
--- a/muse2/muse/widgets/function_dialogs/crescendo.cpp
+++ b/muse2/muse/widgets/function_dialogs/crescendo.cpp
@@ -24,6 +24,8 @@
 #include "crescendo.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Crescendo::Crescendo(QWidget* parent)
 	: QDialog(parent)
 {
@@ -125,3 +127,5 @@ void Crescendo::absolute_changed(bool val)
 		end_spinbox->setSuffix(" %");
 	}
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/crescendo.h b/muse2/muse/widgets/function_dialogs/crescendo.h
index c920d610..c0871ab8 100644
--- a/muse2/muse/widgets/function_dialogs/crescendo.h
+++ b/muse2/muse/widgets/function_dialogs/crescendo.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Crescendo : public QDialog, public Ui::CrescendoBase
 {
  	Q_OBJECT
@@ -58,5 +60,7 @@ class Crescendo : public QDialog, public Ui::CrescendoBase
 		void absolute_changed(bool);
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/deloverlaps.cpp b/muse2/muse/widgets/function_dialogs/deloverlaps.cpp
index 7fa81ef5..0841b6e9 100644
--- a/muse2/muse/widgets/function_dialogs/deloverlaps.cpp
+++ b/muse2/muse/widgets/function_dialogs/deloverlaps.cpp
@@ -24,6 +24,7 @@
 #include "deloverlaps.h"
 #include "xml.h"
 
+namespace MusEDialog {
 
 DelOverlaps::DelOverlaps(QWidget* parent)
 	: QDialog(parent)
@@ -92,3 +93,5 @@ void DelOverlaps::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "range", range);
 	xml.tag(level, "/del_overlaps");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/deloverlaps.h b/muse2/muse/widgets/function_dialogs/deloverlaps.h
index 9d51e0bd..2fc470cd 100644
--- a/muse2/muse/widgets/function_dialogs/deloverlaps.h
+++ b/muse2/muse/widgets/function_dialogs/deloverlaps.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class DelOverlaps : public QDialog, public Ui::DelOverlapsBase
 {
  	Q_OBJECT
@@ -51,5 +53,7 @@ class DelOverlaps : public QDialog, public Ui::DelOverlapsBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/gatetime.cpp b/muse2/muse/widgets/function_dialogs/gatetime.cpp
index dc810ff3..537260ca 100644
--- a/muse2/muse/widgets/function_dialogs/gatetime.cpp
+++ b/muse2/muse/widgets/function_dialogs/gatetime.cpp
@@ -28,6 +28,8 @@
 #include "xml.h"
 #include "song.h"
 
+namespace MusEDialog {
+
 //---------------------------------------------------------
 //   GateTime
 //---------------------------------------------------------
@@ -121,3 +123,5 @@ void GateTime::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "rate", rateVal);
 	xml.tag(level, "/mod_len");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/gatetime.h b/muse2/muse/widgets/function_dialogs/gatetime.h
index 79c6bd75..20d28948 100644
--- a/muse2/muse/widgets/function_dialogs/gatetime.h
+++ b/muse2/muse/widgets/function_dialogs/gatetime.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 //---------------------------------------------------------
 //   GateTime
 //---------------------------------------------------------
@@ -57,5 +59,7 @@ class GateTime : public QDialog, public Ui::GateTimeBase {
       int exec();
       };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/legato.cpp b/muse2/muse/widgets/function_dialogs/legato.cpp
index 0c117d2c..5ca6e29b 100644
--- a/muse2/muse/widgets/function_dialogs/legato.cpp
+++ b/muse2/muse/widgets/function_dialogs/legato.cpp
@@ -24,6 +24,8 @@
 #include "legato.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Legato::Legato(QWidget* parent)
 	: QDialog(parent)
 {
@@ -101,3 +103,5 @@ void Legato::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "allow_shortening", allow_shortening);
 	xml.tag(level, "/legato");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/legato.h b/muse2/muse/widgets/function_dialogs/legato.h
index c701a716..c2cbeabc 100644
--- a/muse2/muse/widgets/function_dialogs/legato.h
+++ b/muse2/muse/widgets/function_dialogs/legato.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Legato : public QDialog, public Ui::LegatoBase
 {
  	Q_OBJECT
@@ -54,5 +56,7 @@ class Legato : public QDialog, public Ui::LegatoBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/move.cpp b/muse2/muse/widgets/function_dialogs/move.cpp
index 379ae30e..2529cb68 100644
--- a/muse2/muse/widgets/function_dialogs/move.cpp
+++ b/muse2/muse/widgets/function_dialogs/move.cpp
@@ -24,6 +24,8 @@
 #include "move.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Move::Move(QWidget* parent)
 	: QDialog(parent)
 {
@@ -97,3 +99,5 @@ void Move::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "amount", amount);
 	xml.tag(level, "/move");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/move.h b/muse2/muse/widgets/function_dialogs/move.h
index c4c91484..39718134 100644
--- a/muse2/muse/widgets/function_dialogs/move.h
+++ b/muse2/muse/widgets/function_dialogs/move.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Move : public QDialog, public Ui::MoveBase
 {
  	Q_OBJECT
@@ -53,5 +55,7 @@ class Move : public QDialog, public Ui::MoveBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/quantize.cpp b/muse2/muse/widgets/function_dialogs/quantize.cpp
index cc225d45..0841e106 100644
--- a/muse2/muse/widgets/function_dialogs/quantize.cpp
+++ b/muse2/muse/widgets/function_dialogs/quantize.cpp
@@ -24,6 +24,8 @@
 #include "quantize.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Quantize::Quantize(QWidget* parent)
 	: QDialog(parent)
 {
@@ -116,3 +118,6 @@ void Quantize::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "quant_len", quant_len);
 	xml.tag(level, "/quantize");
 }
+
+} // namespace MusEDialog
+
diff --git a/muse2/muse/widgets/function_dialogs/quantize.h b/muse2/muse/widgets/function_dialogs/quantize.h
index c8b933c9..69498810 100644
--- a/muse2/muse/widgets/function_dialogs/quantize.h
+++ b/muse2/muse/widgets/function_dialogs/quantize.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Quantize : public QDialog, public Ui::QuantBase
 {
  	Q_OBJECT
@@ -57,5 +59,7 @@ class Quantize : public QDialog, public Ui::QuantBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/remove.cpp b/muse2/muse/widgets/function_dialogs/remove.cpp
index 4742dce4..69558fc3 100644
--- a/muse2/muse/widgets/function_dialogs/remove.cpp
+++ b/muse2/muse/widgets/function_dialogs/remove.cpp
@@ -24,6 +24,8 @@
 #include "remove.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Remove::Remove(QWidget* parent)
 	: QDialog(parent)
 {
@@ -111,3 +113,6 @@ void Remove::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "len_thres_used", len_thres_used);
 	xml.tag(level, "/erase");
 }
+
+} // namespace MusEDialog
+
diff --git a/muse2/muse/widgets/function_dialogs/remove.h b/muse2/muse/widgets/function_dialogs/remove.h
index 785d72eb..aba05909 100644
--- a/muse2/muse/widgets/function_dialogs/remove.h
+++ b/muse2/muse/widgets/function_dialogs/remove.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Remove : public QDialog, public Ui::RemoveBase
 {
  	Q_OBJECT
@@ -56,5 +58,7 @@ class Remove : public QDialog, public Ui::RemoveBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/setlen.cpp b/muse2/muse/widgets/function_dialogs/setlen.cpp
index f75f878c..81a589ae 100644
--- a/muse2/muse/widgets/function_dialogs/setlen.cpp
+++ b/muse2/muse/widgets/function_dialogs/setlen.cpp
@@ -24,6 +24,8 @@
 #include "setlen.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Setlen::Setlen(QWidget* parent)
 	: QDialog(parent)
 {
@@ -96,3 +98,5 @@ void Setlen::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "len", len);
 	xml.tag(level, "/setlen");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/setlen.h b/muse2/muse/widgets/function_dialogs/setlen.h
index 930652ab..fea6a5dd 100644
--- a/muse2/muse/widgets/function_dialogs/setlen.h
+++ b/muse2/muse/widgets/function_dialogs/setlen.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Setlen : public QDialog, public Ui::SetlenBase
 {
  	Q_OBJECT
@@ -53,5 +55,7 @@ class Setlen : public QDialog, public Ui::SetlenBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/transpose.cpp b/muse2/muse/widgets/function_dialogs/transpose.cpp
index 1d4d512d..dd642050 100644
--- a/muse2/muse/widgets/function_dialogs/transpose.cpp
+++ b/muse2/muse/widgets/function_dialogs/transpose.cpp
@@ -24,6 +24,8 @@
 #include "transpose.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 Transpose::Transpose(QWidget* parent)
 	: QDialog(parent)
 {
@@ -96,3 +98,5 @@ void Transpose::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "amount", amount);
 	xml.tag(level, "/transpose");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/transpose.h b/muse2/muse/widgets/function_dialogs/transpose.h
index 651976d8..b6363ae5 100644
--- a/muse2/muse/widgets/function_dialogs/transpose.h
+++ b/muse2/muse/widgets/function_dialogs/transpose.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 class Transpose : public QDialog, public Ui::TransposeBase
 {
 		Q_OBJECT
@@ -51,5 +53,7 @@ class Transpose : public QDialog, public Ui::TransposeBase
 		int exec();
 };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/function_dialogs/velocity.cpp b/muse2/muse/widgets/function_dialogs/velocity.cpp
index 56019e23..81655b5f 100644
--- a/muse2/muse/widgets/function_dialogs/velocity.cpp
+++ b/muse2/muse/widgets/function_dialogs/velocity.cpp
@@ -24,6 +24,8 @@
 #include "velocity.h"
 #include "xml.h"
 
+namespace MusEDialog {
+
 //---------------------------------------------------------
 //   Velocity
 //---------------------------------------------------------
@@ -115,3 +117,5 @@ void Velocity::write_configuration(int level, Xml& xml)
 	xml.intTag(level, "rate", rateVal);
 	xml.tag(level, "/mod_velo");
 }
+
+} // namespace MusEDialog
diff --git a/muse2/muse/widgets/function_dialogs/velocity.h b/muse2/muse/widgets/function_dialogs/velocity.h
index 1642a99d..9ef6cd2a 100644
--- a/muse2/muse/widgets/function_dialogs/velocity.h
+++ b/muse2/muse/widgets/function_dialogs/velocity.h
@@ -28,6 +28,8 @@
 class QButtonGroup;
 class Xml;
 
+namespace MusEDialog {
+
 //---------------------------------------------------------
 //   Velocity
 //---------------------------------------------------------
@@ -57,5 +59,7 @@ class Velocity : public QDialog, public Ui::VelocityBase {
       int exec();
       };
 
+} // namespace MusEDialog
+
 #endif
 
diff --git a/muse2/muse/widgets/genset.cpp b/muse2/muse/widgets/genset.cpp
index d910e5a8..b8a93089 100644
--- a/muse2/muse/widgets/genset.cpp
+++ b/muse2/muse/widgets/genset.cpp
@@ -34,6 +34,8 @@
 #include "globals.h"
 #include "icons.h"
 
+namespace MusEWidget {
+
 static int rtcResolutions[] = {
       1024, 2048, 4096, 8192, 16384, 32768
       };
@@ -511,3 +513,5 @@ void GlobalSettingsConfig::defaultInstrumentsPath()
       QString dir = MusEGlobal::configPath + "/instruments";
       userInstrumentsPath->setText(dir);
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/genset.h b/muse2/muse/widgets/genset.h
index 592f0395..3a2c6354 100644
--- a/muse2/muse/widgets/genset.h
+++ b/muse2/muse/widgets/genset.h
@@ -28,6 +28,8 @@
 
 #include <QShowEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   GlobalSettingsConfig
 //---------------------------------------------------------
@@ -56,4 +58,6 @@ class GlobalSettingsConfig : public QDialog, public Ui::GlobalSettingsDialogBase
       GlobalSettingsConfig(QWidget* parent=0);
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/header.cpp b/muse2/muse/widgets/header.cpp
index c720e605..8e2efe21 100644
--- a/muse2/muse/widgets/header.cpp
+++ b/muse2/muse/widgets/header.cpp
@@ -28,6 +28,8 @@
 #include <QStandardItemModel>
 #include <QMouseEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   readStatus
 //---------------------------------------------------------
@@ -189,3 +191,5 @@ void Header::changeColumns(QAction *a)
   else
     hideSection(section);
 }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/header.h b/muse2/muse/widgets/header.h
index 3f26f392..47c79192 100644
--- a/muse2/muse/widgets/header.h
+++ b/muse2/muse/widgets/header.h
@@ -30,6 +30,8 @@ class QStandardItemModel;
 
 class Xml;
 
+namespace MusEWidget {
+
 class Header : public QHeaderView {
       Q_OBJECT
 
@@ -47,5 +49,7 @@ class Header : public QHeaderView {
       void changeColumns(QAction* a);
 };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/hitscale.cpp b/muse2/muse/widgets/hitscale.cpp
index aaa7dd3b..c1fcdd87 100644
--- a/muse2/muse/widgets/hitscale.cpp
+++ b/muse2/muse/widgets/hitscale.cpp
@@ -28,6 +28,8 @@
 
 #include "song.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   HitScale
 //---------------------------------------------------------
@@ -145,4 +147,5 @@ void HitScale::pdraw(QPainter& p, const QRect& r)
             p.drawLine(xp, 0, xp, height());
       }
 
+}
 
diff --git a/muse2/muse/widgets/hitscale.h b/muse2/muse/widgets/hitscale.h
index fadebb8a..cf43ef4a 100644
--- a/muse2/muse/widgets/hitscale.h
+++ b/muse2/muse/widgets/hitscale.h
@@ -27,6 +27,8 @@
 
 class MidiEditor;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   HitScale
 //    scale for midi track
@@ -57,5 +59,8 @@ class HitScale : public View {
    public:
       HitScale(int* raster, QWidget* parent, int xscale);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/intlabel.cpp b/muse2/muse/widgets/intlabel.cpp
index 890aac1f..6884adfb 100644
--- a/muse2/muse/widgets/intlabel.cpp
+++ b/muse2/muse/widgets/intlabel.cpp
@@ -25,6 +25,8 @@
 #include "intlabel.h"
 #include "utils.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   IntLabel
 //---------------------------------------------------------
@@ -39,7 +41,7 @@ IntLabel::IntLabel(int _val, int _min, int _max, QWidget* parent,
       val = _val+1;           // dont optimize away
       off = _off;
       setValue(_val);
-      int len = num2cols(min, max);
+      int len = MusEUtil::num2cols(min, max);
       setSize(len);
       }
 
@@ -57,7 +59,7 @@ void IntLabel::setRange(int mn, int mx)
 {
   min = mn;
   max = mx;
-  setSize(num2cols(min, max));
+  setSize(MusEUtil::num2cols(min, max));
   int v = val;
   if(val < mn)
     v = mn;
@@ -153,3 +155,4 @@ void IntLabel::setOff(int v)
       setString(val);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/intlabel.h b/muse2/muse/widgets/intlabel.h
index f68667e4..34c075d8 100644
--- a/muse2/muse/widgets/intlabel.h
+++ b/muse2/muse/widgets/intlabel.h
@@ -28,6 +28,8 @@
 
 class QString;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   IntLabel
 //---------------------------------------------------------
@@ -58,4 +60,6 @@ class IntLabel : public Nentry {
       void setRange(int, int);
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/itransformbase.ui b/muse2/muse/widgets/itransformbase.ui
index 51280e56..2e9fb602 100644
--- a/muse2/muse/widgets/itransformbase.ui
+++ b/muse2/muse/widgets/itransformbase.ui
@@ -533,7 +533,7 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="SpinBoxFP" name="procVal1a">
+       <widget class="MusEWidget::SpinBoxFP" name="procVal1a">
          <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
@@ -736,21 +736,21 @@
        </widget>
       </item>
       <item row="2" column="2">
-        <widget class="SpinBoxFP" name="procVal2a">
+        <widget class="MusEWidget::SpinBoxFP" name="procVal2a">
           <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
        </widget>
       </item>
       <item row="2" column="3">
-        <widget class="SpinBoxFP" name="procPortVala">
+        <widget class="MusEWidget::SpinBoxFP" name="procPortVala">
           <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
        </widget>
       </item>
       <item row="2" column="4">
-        <widget class="SpinBoxFP" name="procChannelVala">
+        <widget class="MusEWidget::SpinBoxFP" name="procChannelVala">
           <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
@@ -1106,7 +1106,7 @@
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
    <customwidget>
-     <class>SpinBoxFP</class>
+     <class>MusEWidget::SpinBoxFP</class>
      <extends>QDoubleSpinBox</extends>
      <header>spinboxFP.h</header>
    </customwidget>
diff --git a/muse2/muse/widgets/knob.cpp b/muse2/muse/widgets/knob.cpp
index e792e1ce..9bc63b33 100644
--- a/muse2/muse/widgets/knob.cpp
+++ b/muse2/muse/widgets/knob.cpp
@@ -34,6 +34,8 @@
 #include <QPaintEvent>
 #include <QResizeEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //  The QwtKnob widget imitates look and behaviour of a volume knob on a radio.
 //  It contains
@@ -333,8 +335,8 @@ void Knob::resizeEvent(QResizeEvent *)
 
 // printf("resize %d %d %d\n", r.height(), r.width(), d_knobWidth);
 
-//      width = qwtMin(qwtMin(r.height(), r.width()), d_knobWidth);
-      width = qwtMin(r.height(), r.width());
+//      width = MusEUtil::qwtMin(MusEUtil::qwtMin(r.height(), r.width()), d_knobWidth);
+      width = MusEUtil::qwtMin(r.height(), r.width());
       width_2 = width / 2;
 
       int x = r.x() + r.width()  / 2 - width_2;
@@ -423,7 +425,7 @@ void Knob::drawMarker(QPainter *p, double arc, const QColor &c)
   
   p->setBrush(c);
   p->setPen(Qt::NoPen);
-  rb = double(qwtMax(radius - 4 - d_dotWidth / 2, 0));
+  rb = double(MusEUtil::qwtMax(radius - 4 - d_dotWidth / 2, 0));
   p->drawEllipse(xm - int(rint(sa * rb)) - d_dotWidth / 2,
            ym - int(rint(ca * rb)) - d_dotWidth / 2,
            d_dotWidth, d_dotWidth);
@@ -436,8 +438,8 @@ void Knob::drawMarker(QPainter *p, double arc, const QColor &c)
   pn.setWidth(2);
   p->setPen(pn);
   
-  rb = qwtMax(double((radius - 1) / 3.0), 0.0);
-  re = qwtMax(double(radius - 1), 0.0);
+  rb = MusEUtil::qwtMax(double((radius - 1) / 3.0), 0.0);
+  re = MusEUtil::qwtMax(double(radius - 1), 0.0);
 
   p->setRenderHint(QPainter::Antialiasing, true);
   p->drawLine( xm,
@@ -468,7 +470,7 @@ void Knob::drawMarker(QPainter *p, double arc, const QColor &c)
 //------------------------------------------------------------
 void Knob::setKnobWidth(int w)
 {
-    d_knobWidth = qwtMax(w,5);
+    d_knobWidth = MusEUtil::qwtMax(w,5);
     resize(size());
     repaint();
 }
@@ -487,7 +489,7 @@ void Knob::setKnobWidth(int w)
 //------------------------------------------------------------
 void Knob::setBorderWidth(int bw)
 {
-    d_borderWidth = qwtMax(bw, 0);
+    d_borderWidth = MusEUtil::qwtMax(bw, 0);
     resize(size());
     repaint();
 }
@@ -571,3 +573,4 @@ void Knob::setMarkerColor(const QColor c)
   repaint();
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/knob.h b/muse2/muse/widgets/knob.h
index 6c44ad27..a629f158 100644
--- a/muse2/muse/widgets/knob.h
+++ b/muse2/muse/widgets/knob.h
@@ -30,6 +30,7 @@
 #include <QResizeEvent>
 #include <QPaintEvent>
 
+namespace MusEWidget {
 
 //---------------------------------------------------------
 //   Knob
@@ -103,5 +104,6 @@ class Knob : public SliderBase, public ScaleIf
       void setMarkerColor(const QColor c);
       };
 
+} // namespace MusEWidget
 
 #endif
diff --git a/muse2/muse/widgets/lcombo.cpp b/muse2/muse/widgets/lcombo.cpp
index 6136994c..ca17e5e3 100644
--- a/muse2/muse/widgets/lcombo.cpp
+++ b/muse2/muse/widgets/lcombo.cpp
@@ -25,6 +25,7 @@
 #include <QHBoxLayout>
 #include <QLabel>
 
+namespace MusEWidget {
 
 //---------------------------------------------------------
 //   LabelCombo
@@ -64,3 +65,5 @@ void LabelCombo::setCurrentIndex(int i)
   if(box->currentIndex() != r)  
     box->setCurrentIndex(r); 
 } 
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/lcombo.h b/muse2/muse/widgets/lcombo.h
index 98c50158..f500dc60 100644
--- a/muse2/muse/widgets/lcombo.h
+++ b/muse2/muse/widgets/lcombo.h
@@ -29,6 +29,7 @@
 
 class QString;
 
+namespace MusEWidget {
 
 //---------------------------------------------------------
 //   LabelCombo
@@ -56,4 +57,6 @@ class LabelCombo : public QWidget {
       void setFocusPolicy ( Qt::FocusPolicy fp ) { box->setFocusPolicy(fp); }
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/menutitleitem.cpp b/muse2/muse/widgets/menutitleitem.cpp
index 684f6842..c15c8c64 100644
--- a/muse2/muse/widgets/menutitleitem.cpp
+++ b/muse2/muse/widgets/menutitleitem.cpp
@@ -22,6 +22,8 @@
 
 #include "menutitleitem.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MenuTitleItem
 //---------------------------------------------------------
@@ -48,3 +50,4 @@ QWidget* MenuTitleItem::createWidget(QWidget *parent)
   return l;
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/menutitleitem.h b/muse2/muse/widgets/menutitleitem.h
index cfc6f6da..98573c72 100644
--- a/muse2/muse/widgets/menutitleitem.h
+++ b/muse2/muse/widgets/menutitleitem.h
@@ -25,6 +25,8 @@
 
 #include <QWidgetAction>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MenuTitleItem
 //---------------------------------------------------------
@@ -41,4 +43,5 @@ class MenuTitleItem : public QWidgetAction {
       QWidget* createWidget(QWidget* /*parent*/);
       };
 
+} // namespace MusEWidget
 #endif
diff --git a/muse2/muse/widgets/meter.cpp b/muse2/muse/widgets/meter.cpp
index c4216c0c..f4d907d1 100644
--- a/muse2/muse/widgets/meter.cpp
+++ b/muse2/muse/widgets/meter.cpp
@@ -33,6 +33,8 @@
 #include "gconfig.h"
 #include "fastlog.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Meter
 //---------------------------------------------------------
@@ -357,3 +359,4 @@ void Meter::mousePressEvent(QMouseEvent*)
       emit mousePress();
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/meter.h b/muse2/muse/widgets/meter.h
index 09464988..62ad3fe0 100644
--- a/muse2/muse/widgets/meter.h
+++ b/muse2/muse/widgets/meter.h
@@ -32,6 +32,7 @@ class QResizeEvent;
 class QMouseEvent;
 class QPainter;
 
+namespace MusEWidget {
 
 class Meter : public QFrame {
     Q_OBJECT
@@ -97,5 +98,8 @@ class Meter : public QFrame {
       Meter(QWidget* parent, MeterType type = DBMeter);
       void setRange(double min, double max);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/metronome.cpp b/muse2/muse/widgets/metronome.cpp
index 4bb58160..e639df81 100644
--- a/muse2/muse/widgets/metronome.cpp
+++ b/muse2/muse/widgets/metronome.cpp
@@ -30,6 +30,8 @@
 #include "track.h"
 #include "audio.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MetronomeConfig
 //---------------------------------------------------------
@@ -196,3 +198,6 @@ void MetronomeConfig::beepVolumeChanged(int volume)
       // this value is directly applied, not using th Apply button, it just seems more usable this way.
       MusEGlobal::audioClickVolume=volume/100.0;
       }
+
+} // namespace MusEWidget
+
diff --git a/muse2/muse/widgets/metronome.h b/muse2/muse/widgets/metronome.h
index 93dc05f0..62edcdc5 100644
--- a/muse2/muse/widgets/metronome.h
+++ b/muse2/muse/widgets/metronome.h
@@ -28,6 +28,8 @@
 
 class QDialog;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MetronomeConfig
 //---------------------------------------------------------
@@ -48,4 +50,7 @@ class MetronomeConfig : public QDialog, public Ui::MetronomeConfigBase {
    public:
       MetronomeConfig(QDialog* parent=0);
       };
+
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/midisyncimpl.cpp b/muse2/muse/widgets/midisyncimpl.cpp
index 1e6e27e2..89075af9 100644
--- a/muse2/muse/widgets/midisyncimpl.cpp
+++ b/muse2/muse/widgets/midisyncimpl.cpp
@@ -41,6 +41,8 @@
 #include "driver/audiodev.h"
 #include "audio.h"
 
+namespace MusEWidget {
+
 enum { DEVCOL_NO = 0, DEVCOL_NAME, DEVCOL_IN, DEVCOL_TICKIN, DEVCOL_MRTIN, DEVCOL_MMCIN, DEVCOL_MTCIN, DEVCOL_MTCTYPE, 
        DEVCOL_RID, DEVCOL_RCLK, DEVCOL_RMRT, DEVCOL_RMMC, DEVCOL_RMTC, DEVCOL_RREWSTART, 
        DEVCOL_TID, DEVCOL_TCLK, DEVCOL_TMRT, DEVCOL_TMMC, DEVCOL_TMTC, /* DEVCOL_TREWSTART, */  };
@@ -1266,3 +1268,4 @@ void MidiSyncConfig::setDirty()
     applyButton->setEnabled(true);
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/midisyncimpl.h b/muse2/muse/widgets/midisyncimpl.h
index 21300be9..ddccf7c9 100644
--- a/muse2/muse/widgets/midisyncimpl.h
+++ b/muse2/muse/widgets/midisyncimpl.h
@@ -31,6 +31,8 @@ class QCloseEvent;
 class QDialog;
 class QTreeWidgetItem;
 
+namespace MusEWidget {
+
 //----------------------------------------------------------
 //   MidiSyncLViewItem
 //----------------------------------------------------------
@@ -130,5 +132,7 @@ class MidiSyncConfig : public QDialog, public Ui::MidiSyncConfigBase {
       void setDirty();
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/mittransposebase.ui b/muse2/muse/widgets/mittransposebase.ui
index b29e34ed..06a18029 100644
--- a/muse2/muse/widgets/mittransposebase.ui
+++ b/muse2/muse/widgets/mittransposebase.ui
@@ -44,7 +44,7 @@
     </widget>
    </item>
    <item>
-    <widget class="PitchEdit" name="triggerKeySpinBox" native="true"/>
+    <widget class="MusEWidget::PitchEdit" name="triggerKeySpinBox" native="true"/>
    </item>
    <item>
     <widget class="QLabel" name="TextLabel2">
@@ -101,7 +101,7 @@
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
   <customwidget>
-   <class>PitchEdit</class>
+   <class>MusEWidget::PitchEdit</class>
    <extends>QWidget</extends>
    <header>pitchedit.h</header>
   </customwidget>
diff --git a/muse2/muse/widgets/mixdowndialog.cpp b/muse2/muse/widgets/mixdowndialog.cpp
index 40bf69c3..01c1d049 100644
--- a/muse2/muse/widgets/mixdowndialog.cpp
+++ b/muse2/muse/widgets/mixdowndialog.cpp
@@ -33,13 +33,15 @@
 
 SndFile* getSndFile(const SndFile* sf, QWidget* parent)
       {
-      MixdownFileDialog* dialog = new MixdownFileDialog(sf, parent);
+      MusEWidget::MixdownFileDialog* dialog = new MusEWidget::MixdownFileDialog(sf, parent);
       dialog->exec();
       SndFile* sndFile = dialog->sndFile();
       delete dialog;
       return sndFile;
       }
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MixdownFileDialog
 //---------------------------------------------------------
@@ -118,3 +120,4 @@ void MixdownFileDialog::fdialog()
             editPath->setText(path);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/mixdowndialog.h b/muse2/muse/widgets/mixdowndialog.h
index 71eafa8b..cca60178 100644
--- a/muse2/muse/widgets/mixdowndialog.h
+++ b/muse2/muse/widgets/mixdowndialog.h
@@ -31,6 +31,8 @@ class SndFile;
 
 extern SndFile* getSndFile(const SndFile* sf, QWidget* parent);
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MixdownFileDialog
 //---------------------------------------------------------
@@ -49,5 +51,7 @@ class MixdownFileDialog : public QDialog, public Ui::MixdownFileDialogBase {
       SndFile* sndFile() { return sf; }
       };
 
+}
+
 #endif
 
diff --git a/muse2/muse/widgets/mlabel.cpp b/muse2/muse/widgets/mlabel.cpp
index 6f1b3810..071427b6 100644
--- a/muse2/muse/widgets/mlabel.cpp
+++ b/muse2/muse/widgets/mlabel.cpp
@@ -22,9 +22,11 @@
 
 #include "mlabel.h"
 
+namespace MusEWidget {
 
 void MLabel::mousePressEvent(QMouseEvent*)
       {
       emit mousePressed();
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/mlabel.h b/muse2/muse/widgets/mlabel.h
index 07c83feb..64a52220 100644
--- a/muse2/muse/widgets/mlabel.h
+++ b/muse2/muse/widgets/mlabel.h
@@ -25,6 +25,8 @@
 
 #include <QLabel>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MLabel
 //    label widged which sends signal mousePressed
@@ -48,5 +50,8 @@ class MLabel : public QLabel {
       MLabel(QWidget* parent, const char* name = 0)
          : QLabel(parent) {setObjectName(name);};
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/mmath.cpp b/muse2/muse/widgets/mmath.cpp
index 31c22744..52dffea2 100644
--- a/muse2/muse/widgets/mmath.cpp
+++ b/muse2/muse/widgets/mmath.cpp
@@ -46,6 +46,7 @@
 //	qwtInt -- Return nearest integer
 //	qwtLim -- Limit a values
 
+namespace MusEUtil {
 
 //------------------------------------------------------------
 //.F	qwtGetMin
@@ -320,3 +321,5 @@ void qwtLogSpace(double *array, int size, double xmin, double xmax)
        array[i] = exp(lxmin + double(i) * lstep);
 
 }
+
+} // namespace MusEUtil
diff --git a/muse2/muse/widgets/mmath.h b/muse2/muse/widgets/mmath.h
index 0449b3ad..813aed93 100644
--- a/muse2/muse/widgets/mmath.h
+++ b/muse2/muse/widgets/mmath.h
@@ -27,6 +27,8 @@
 #define LOG_MIN 1.0e-100
 #define LOG_MAX 1.0e100
 
+namespace MusEUtil {
+
 double qwtCeil125(double x);
 double qwtFloor125(double x);
 void qwtTwistArray(double *array, int size);
@@ -88,5 +90,7 @@ T qwtLim(const T& x, const T& x1, const T& x2)
     return rv;
 }
 
+}
+
 #endif
 
diff --git a/muse2/muse/widgets/mtrackinfo.cpp b/muse2/muse/widgets/mtrackinfo.cpp
index 60baebce..e4c4e217 100644
--- a/muse2/muse/widgets/mtrackinfo.cpp
+++ b/muse2/muse/widgets/mtrackinfo.cpp
@@ -43,6 +43,8 @@
 #include "popupmenu.h"
 #include "routepopup.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   setTrack
 //---------------------------------------------------------
@@ -557,7 +559,7 @@ void MidiTrackInfo::setLabelFont()
       // Set the label's font.
       trackNameLabel->setFont(MusEConfig::config.fonts[6]);
       // Dealing with a horizontally constrained label. Ignore vertical. Use a minimum readable point size.
-      autoAdjustFontSize(trackNameLabel, trackNameLabel->text(), false, true, MusEConfig::config.fonts[6].pointSize(), 5); 
+      MusEUtil::autoAdjustFontSize(trackNameLabel, trackNameLabel->text(), false, true, MusEConfig::config.fonts[6].pointSize(), 5); 
 }
   
 //---------------------------------------------------------
@@ -1564,3 +1566,4 @@ void MidiTrackInfo::recordClicked()
       }
     }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/mtrackinfo.h b/muse2/muse/widgets/mtrackinfo.h
index 122d8aa0..42be1f58 100644
--- a/muse2/muse/widgets/mtrackinfo.h
+++ b/muse2/muse/widgets/mtrackinfo.h
@@ -26,6 +26,8 @@
 
 class Track;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MidiTrackInfo
 //---------------------------------------------------------
@@ -80,7 +82,7 @@ class MidiTrackInfo : public QWidget, public Ui::MidiTrackInfoBase
       void updateTrackInfo(int);
 };
 
-
+} // namespace MusEWidget
 
 #endif
 
diff --git a/muse2/muse/widgets/mtrackinfobase.ui b/muse2/muse/widgets/mtrackinfobase.ui
index 53e772c8..99c06ad0 100644
--- a/muse2/muse/widgets/mtrackinfobase.ui
+++ b/muse2/muse/widgets/mtrackinfobase.ui
@@ -86,7 +86,7 @@
     </widget>
    </item>
    <item row="2" column="0">
-    <widget class="SpinBox" name="iOutputChannel">
+    <widget class="MusEWidget::SpinBox" name="iOutputChannel">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -247,7 +247,7 @@
     </layout>
    </item>
    <item row="4" column="0">
-    <widget class="SpinBox" name="iTransp">
+    <widget class="MusEWidget::SpinBox" name="iTransp">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -291,7 +291,7 @@
     </widget>
    </item>
    <item row="5" column="0">
-    <widget class="SpinBox" name="iVerz">
+    <widget class="MusEWidget::SpinBox" name="iVerz">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -332,7 +332,7 @@
     </widget>
    </item>
    <item row="6" column="0">
-    <widget class="SpinBox" name="iLen">
+    <widget class="MusEWidget::SpinBox" name="iLen">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -376,7 +376,7 @@
     </widget>
    </item>
    <item row="7" column="0">
-    <widget class="SpinBox" name="iAnschl">
+    <widget class="MusEWidget::SpinBox" name="iAnschl">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -423,7 +423,7 @@
     </widget>
    </item>
    <item row="8" column="0">
-    <widget class="SpinBox" name="iKompr">
+    <widget class="MusEWidget::SpinBox" name="iKompr">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -575,7 +575,7 @@
     </layout>
    </item>
    <item row="12" column="0">
-    <widget class="SpinBox" name="iHBank">
+    <widget class="MusEWidget::SpinBox" name="iHBank">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -628,7 +628,7 @@
     </widget>
    </item>
    <item row="13" column="0">
-    <widget class="SpinBox" name="iLBank">
+    <widget class="MusEWidget::SpinBox" name="iLBank">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -681,7 +681,7 @@
     </widget>
    </item>
    <item row="14" column="0">
-    <widget class="SpinBox" name="iProgram">
+    <widget class="MusEWidget::SpinBox" name="iProgram">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -748,7 +748,7 @@
     </layout>
    </item>
    <item row="15" column="0">
-    <widget class="SpinBox" name="iLautst">
+    <widget class="MusEWidget::SpinBox" name="iLautst">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -815,7 +815,7 @@
     </layout>
    </item>
    <item row="16" column="0">
-    <widget class="SpinBox" name="iPan">
+    <widget class="MusEWidget::SpinBox" name="iPan">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -905,7 +905,7 @@
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
   <customwidget>
-   <class>SpinBox</class>
+   <class>MusEWidget::SpinBox</class>
    <extends>QSpinBox</extends>
    <header location="global">spinbox.h</header>
   </customwidget>
diff --git a/muse2/muse/widgets/mtscale.cpp b/muse2/muse/widgets/mtscale.cpp
index d7046fa7..1bd34de3 100644
--- a/muse2/muse/widgets/mtscale.cpp
+++ b/muse2/muse/widgets/mtscale.cpp
@@ -30,6 +30,8 @@
 #include "icons.h"
 #include "gconfig.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MTScale
 //    Midi Time Scale
@@ -431,3 +433,4 @@ void MTScale::pdraw(QPainter& p, const QRect& r)
             }
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/mtscale.h b/muse2/muse/widgets/mtscale.h
index 36443fca..820e33c6 100644
--- a/muse2/muse/widgets/mtscale.h
+++ b/muse2/muse/widgets/mtscale.h
@@ -26,6 +26,8 @@
 #include "view.h"
 
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MTScale
 //    scale for midi track
@@ -60,5 +62,8 @@ class MTScale : public View {
       MTScale(int* raster, QWidget* parent, int xscale, bool f = false);
       void setBarLocator(bool f) { barLocator = f; }
       };
+
+} 
+
 #endif
 
diff --git a/muse2/muse/widgets/mtscale_flo.cpp b/muse2/muse/widgets/mtscale_flo.cpp
index e60738bb..50abf75d 100644
--- a/muse2/muse/widgets/mtscale_flo.cpp
+++ b/muse2/muse/widgets/mtscale_flo.cpp
@@ -31,6 +31,8 @@
 #include "gconfig.h"
 #include "scoreedit.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MTScale
 //    Midi Time Scale
@@ -338,3 +340,5 @@ void MTScaleFlo::pos_add_changed()
 {
 	redraw();
 }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/mtscale_flo.h b/muse2/muse/widgets/mtscale_flo.h
index 3ac30651..b7169ab6 100644
--- a/muse2/muse/widgets/mtscale_flo.h
+++ b/muse2/muse/widgets/mtscale_flo.h
@@ -28,6 +28,8 @@
 
 class ScoreCanvas;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   MTScaleFlo
 //    scale for midi track
@@ -62,5 +64,8 @@ class MTScaleFlo : public View {
    public:
       MTScaleFlo(ScoreCanvas* parent_editor, QWidget* parent_widget);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/nentry.cpp b/muse2/muse/widgets/nentry.cpp
index c5132f83..13569b0d 100644
--- a/muse2/muse/widgets/nentry.cpp
+++ b/muse2/muse/widgets/nentry.cpp
@@ -36,6 +36,8 @@
 #define TIMEC2    20
 #define TIMER4    50
 
+namespace MusEWidget {
+
 NentryFilter::NentryFilter(QObject* parent)
    : QObject(parent)
       {
@@ -414,3 +416,4 @@ bool Nentry::keyPress(QKeyEvent* event)
       return true;
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/nentry.h b/muse2/muse/widgets/nentry.h
index a82a258c..c0508c63 100644
--- a/muse2/muse/widgets/nentry.h
+++ b/muse2/muse/widgets/nentry.h
@@ -30,6 +30,8 @@ class QLabel;
 class QLineEdit;
 class QTimer;
 
+namespace MusEWidget {
+
 class NentryFilter : public QObject {
       Q_OBJECT
 
@@ -96,4 +98,7 @@ class Nentry : public QFrame {
       void setFocusPolicy(Qt::FocusPolicy);
       bool contextMenu(QContextMenuEvent*);
       };
+
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/noteinfo.cpp b/muse2/muse/widgets/noteinfo.cpp
index 78e8e882..2a262723 100644
--- a/muse2/muse/widgets/noteinfo.cpp
+++ b/muse2/muse/widgets/noteinfo.cpp
@@ -31,6 +31,8 @@
 ///#include "posedit.h"
 #include "pitchedit.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------
 //    NoteInfo
 //    ToolBar
@@ -224,3 +226,4 @@ void NoteInfo::timeChanged(const Pos& pos)
             emit valueChanged(VAL_TIME, pos.tick());
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/noteinfo.h b/muse2/muse/widgets/noteinfo.h
index 499662a6..6ca34a42 100644
--- a/muse2/muse/widgets/noteinfo.h
+++ b/muse2/muse/widgets/noteinfo.h
@@ -32,9 +32,12 @@ namespace Awl {
 class QSpinBox;
 
 ///class PosEdit;
-class PitchEdit;
 class Pos;
 
+namespace MusEWidget {
+
+class PitchEdit;
+
 //---------------------------------------------------------
 //   NoteInfo
 //---------------------------------------------------------
@@ -72,5 +75,8 @@ class NoteInfo : public QToolBar {
    signals:
       void valueChanged(NoteInfo::ValType, int);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/pitchedit.cpp b/muse2/muse/widgets/pitchedit.cpp
index 61e962fc..7d637d01 100644
--- a/muse2/muse/widgets/pitchedit.cpp
+++ b/muse2/muse/widgets/pitchedit.cpp
@@ -24,6 +24,8 @@
 #include "pitchedit.h"
 #include "helper.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PitchEdit
 //---------------------------------------------------------
@@ -77,3 +79,4 @@ void PitchEdit::setDeltaMode(bool val)
             setRange(0, 127);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/pitchedit.h b/muse2/muse/widgets/pitchedit.h
index 6cce3f1d..0c334d22 100644
--- a/muse2/muse/widgets/pitchedit.h
+++ b/muse2/muse/widgets/pitchedit.h
@@ -25,6 +25,10 @@
 
 #include <QSpinBox>
 
+extern QString pitch2string(int v);
+
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PitchEdit
 //---------------------------------------------------------
@@ -43,6 +47,6 @@ class PitchEdit : public QSpinBox {
       void setDeltaMode(bool);
       };
 
-extern QString pitch2string(int v);
+} // namespace MusEWidget
 
 #endif
diff --git a/muse2/muse/widgets/pitchlabel.cpp b/muse2/muse/widgets/pitchlabel.cpp
index b9cd6d3d..b1f062a8 100644
--- a/muse2/muse/widgets/pitchlabel.cpp
+++ b/muse2/muse/widgets/pitchlabel.cpp
@@ -27,6 +27,8 @@
 #include "pitchlabel.h"
 #include "helper.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PitchLabel
 //---------------------------------------------------------
@@ -110,3 +112,4 @@ void PitchLabel::setPitch(int val)
       setValue(val);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/pitchlabel.h b/muse2/muse/widgets/pitchlabel.h
index da0c42e8..3fe2eb42 100644
--- a/muse2/muse/widgets/pitchlabel.h
+++ b/muse2/muse/widgets/pitchlabel.h
@@ -25,6 +25,8 @@
 
 #include <QLabel>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PitchLabel
 //---------------------------------------------------------
@@ -51,6 +53,7 @@ class PitchLabel : public QLabel {
       bool pitchMode() const { return _pitchMode; }
       };
 
+} // namespace MusEWidget
 
 #endif
 
diff --git a/muse2/muse/widgets/popupmenu.cpp b/muse2/muse/widgets/popupmenu.cpp
index 827e60b9..2b0b6711 100644
--- a/muse2/muse/widgets/popupmenu.cpp
+++ b/muse2/muse/widgets/popupmenu.cpp
@@ -41,6 +41,8 @@
 #include "route.h"
  
  
+namespace MusEWidget {
+
 //======================
 // PopupMenu
 //======================
@@ -388,3 +390,4 @@ void PopupView::clear()
 }
 */ 
  
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/popupmenu.h b/muse2/muse/widgets/popupmenu.h
index 309adfdb..b51cfd56 100644
--- a/muse2/muse/widgets/popupmenu.h
+++ b/muse2/muse/widgets/popupmenu.h
@@ -47,6 +47,8 @@ class QEvent;
 //class QTimer;
 //class QStandardItemModel;
 
+namespace MusEWidget {
+
 class PopupMenu : public QMenu
 {
   Q_OBJECT
@@ -99,6 +101,7 @@ class PopupView : public QColumnView
 };
 */
 
+} // namespace MusEWidget
 
 #endif
 
diff --git a/muse2/muse/widgets/posedit.cpp b/muse2/muse/widgets/posedit.cpp
index c09a385b..0e031c38 100644
--- a/muse2/muse/widgets/posedit.cpp
+++ b/muse2/muse/widgets/posedit.cpp
@@ -38,6 +38,8 @@
 
 extern int mtcType;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   QNumberSection
 //---------------------------------------------------------
@@ -867,3 +869,5 @@ void PosEdit::setEnabled(bool v)
   QWidget::setEnabled(v);
   updateButtons();
 }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/posedit.h b/muse2/muse/widgets/posedit.h
index 8db08d59..3224a3a6 100644
--- a/muse2/muse/widgets/posedit.h
+++ b/muse2/muse/widgets/posedit.h
@@ -34,6 +34,8 @@ class QTimerEvent;
 class PosEditor;
 class SpinBox;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PosEdit
 //---------------------------------------------------------
@@ -116,4 +118,6 @@ class PosEdit : public QWidget
       void enterPressed();
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/poslabel.cpp b/muse2/muse/widgets/poslabel.cpp
index cb54de0c..98a7eba3 100644
--- a/muse2/muse/widgets/poslabel.cpp
+++ b/muse2/muse/widgets/poslabel.cpp
@@ -35,6 +35,8 @@
 
 extern int mtcType;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PosLabel
 //---------------------------------------------------------
@@ -169,3 +171,4 @@ void PosLabel::setSmpte(bool val)
       updateValue();
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/poslabel.h b/muse2/muse/widgets/poslabel.h
index f458ec6c..38236ac7 100644
--- a/muse2/muse/widgets/poslabel.h
+++ b/muse2/muse/widgets/poslabel.h
@@ -25,6 +25,8 @@
 
 #include <QLabel>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   PosLabel
 //---------------------------------------------------------
@@ -56,6 +58,7 @@ class PosLabel : public QLabel {
       bool smpte() const { return _smpte; }
       };
 
+} // namespace MusEWidget
 
 #endif
 
diff --git a/muse2/muse/widgets/projectcreateimpl.cpp b/muse2/muse/widgets/projectcreateimpl.cpp
index bb36f6f4..d6f918b3 100644
--- a/muse2/muse/widgets/projectcreateimpl.cpp
+++ b/muse2/muse/widgets/projectcreateimpl.cpp
@@ -28,6 +28,8 @@
 #include "globals.h"
 #include "app.h"
 
+namespace MusEWidget {
+
 ProjectCreateImpl::ProjectCreateImpl(QWidget *parent) :
     QDialog(parent)
 {
@@ -91,3 +93,5 @@ void ProjectCreateImpl::ok()
   MusEGlobal::muse->changeConfig(true);
   emit accept();
 }
+
+} //namespace MusEWidget
diff --git a/muse2/muse/widgets/projectcreateimpl.h b/muse2/muse/widgets/projectcreateimpl.h
index aa5613f4..d6881840 100644
--- a/muse2/muse/widgets/projectcreateimpl.h
+++ b/muse2/muse/widgets/projectcreateimpl.h
@@ -26,6 +26,8 @@
 #include <QDialog>
 #include "ui_projectcreate.h"
 
+namespace MusEWidget {
+
 class ProjectCreateImpl : public QDialog, Ui::ProjectCreate
 {
     Q_OBJECT
@@ -45,4 +47,6 @@ public slots:
 
 };
 
+} // namespace MusEWidget
+
 #endif // PROJECTCREATEIMPL_H
diff --git a/muse2/muse/widgets/routepopup.cpp b/muse2/muse/widgets/routepopup.cpp
index e2d83b65..ec3f3ea0 100644
--- a/muse2/muse/widgets/routepopup.cpp
+++ b/muse2/muse/widgets/routepopup.cpp
@@ -34,6 +34,8 @@
 #include "menutitleitem.h"
 #include "popupmenu.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   addMenuItem
 //---------------------------------------------------------
@@ -1420,3 +1422,4 @@ void RoutePopupMenu::popup(const QPoint& p, Track* track, bool isOutput)
   _pup->popup(p);
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/routepopup.h b/muse2/muse/widgets/routepopup.h
index 330a800b..7f5a8820 100644
--- a/muse2/muse/widgets/routepopup.h
+++ b/muse2/muse/widgets/routepopup.h
@@ -27,12 +27,15 @@
 
 class Track;
 class AudioTrack;
-class PopupMenu;
 class QWidget;
 class QString;
 class QAction;
 class QPoint;
 
+namespace MusEWidget {
+
+class PopupMenu;
+
 class RoutePopupMenu : public QObject
 {
   Q_OBJECT
@@ -72,4 +75,6 @@ class RoutePopupMenu : public QObject
     void popup(const QPoint& p, Track* track = 0, bool isOutput = false);
 };
 
+}
+
 #endif
diff --git a/muse2/muse/widgets/scldiv.cpp b/muse2/muse/widgets/scldiv.cpp
index f0058848..ba19f659 100644
--- a/muse2/muse/widgets/scldiv.cpp
+++ b/muse2/muse/widgets/scldiv.cpp
@@ -26,6 +26,8 @@
 #include "scldiv.h"
 #include "mmath.h"
 
+namespace MusEWidget {
+
 //	ScaleDiv - A class for building  scale divisions
 //
 //	The ScaleDiv class can build
@@ -82,10 +84,10 @@ static bool limRange(double &val, double v1, double v2, double eps_rel = 0.0,
       {
 
     bool rv = TRUE;
-    double vmin = qwtMin(v1, v2);
-    double vmax = qwtMax(v1, v2);
-    double delta_min = qwtMax(qwtAbs(eps_rel * vmin), qwtAbs(eps_abs));
-    double delta_max = qwtMax(qwtAbs(eps_rel * vmax), qwtAbs(eps_abs));
+    double vmin = MusEUtil::qwtMin(v1, v2);
+    double vmax = MusEUtil::qwtMax(v1, v2);
+    double delta_min = MusEUtil::qwtMax(MusEUtil::qwtAbs(eps_rel * vmin), MusEUtil::qwtAbs(eps_abs));
+    double delta_max = MusEUtil::qwtMax(MusEUtil::qwtAbs(eps_rel * vmax), MusEUtil::qwtAbs(eps_abs));
 
     if (val < vmin)
     {
@@ -231,8 +233,8 @@ bool ScaleDiv::rebuild(double x1, double x2, int maxMajSteps, int maxMinSteps,
 
   int rv;
 
-  d_lBound = qwtMin(x1, x2);
-  d_hBound = qwtMax(x1, x2);
+  d_lBound = MusEUtil::qwtMin(x1, x2);
+  d_hBound = MusEUtil::qwtMax(x1, x2);
   d_log = log;
 
   if (d_log)
@@ -244,8 +246,8 @@ bool ScaleDiv::rebuild(double x1, double x2, int maxMajSteps, int maxMinSteps,
   {
       d_lBound = x1;
       d_hBound = x2;
-      qwtTwistArray(d_majMarks.data(), d_majMarks.size());
-      qwtTwistArray(d_minMarks.data(), d_minMarks.size());
+      MusEUtil::qwtTwistArray(d_majMarks.data(), d_majMarks.size());
+      MusEUtil::qwtTwistArray(d_minMarks.data(), d_minMarks.size());
   }
 
   return rv;
@@ -291,9 +293,9 @@ bool ScaleDiv::buildLinDiv(int maxMajSteps, int maxMinSteps, double step)
     bool rv = TRUE;
 
     // parameter range check
-    maxMajSteps = qwtMax(1, maxMajSteps);
-    maxMinSteps = qwtMax(0, maxMinSteps);
-    step = qwtAbs(step);
+    maxMajSteps = MusEUtil::qwtMax(1, maxMajSteps);
+    maxMinSteps = MusEUtil::qwtMax(0, maxMinSteps);
+    step = MusEUtil::qwtAbs(step);
 
     // reset vectors
     d_minMarks.resize(0);
@@ -305,7 +307,7 @@ bool ScaleDiv::buildLinDiv(int maxMajSteps, int maxMinSteps, double step)
     // Set up major divisions
     //
     if (step == 0.0)
-       d_majStep = qwtCeil125(qwtAbs(d_hBound - d_lBound) * 0.999999
+       d_majStep = MusEUtil::qwtCeil125(MusEUtil::qwtAbs(d_hBound - d_lBound) * 0.999999
 			      / double(maxMajSteps));
     else
        d_majStep = step;
@@ -315,10 +317,10 @@ bool ScaleDiv::buildLinDiv(int maxMajSteps, int maxMinSteps, double step)
     firstTick = ceil( (d_lBound - step_eps * d_majStep) / d_majStep) * d_majStep;
     lastTick = floor( (d_hBound + step_eps * d_majStep) / d_majStep) * d_majStep;
 
-    nMaj = qwtMin(10000, int(rint((lastTick - firstTick) / d_majStep)) + 1);
+    nMaj = MusEUtil::qwtMin(10000, int(rint((lastTick - firstTick) / d_majStep)) + 1);
     
     d_majMarks.resize(nMaj);
-    qwtLinSpace(d_majMarks.data(), d_majMarks.size(), firstTick, lastTick);
+    MusEUtil::qwtLinSpace(d_majMarks.data(), d_majMarks.size(), firstTick, lastTick);
 
     //
     // Set up minor divisions
@@ -326,14 +328,14 @@ bool ScaleDiv::buildLinDiv(int maxMajSteps, int maxMinSteps, double step)
     if (maxMinSteps < 1) // no minor divs
        return TRUE;
 
-    minStep = qwtCeil125( d_majStep  /  double(maxMinSteps) );
+    minStep = MusEUtil::qwtCeil125( d_majStep  /  double(maxMinSteps) );
 
     if (minStep == 0.0) return TRUE;
 
-    nMin = qwtAbs(int(rint(d_majStep / minStep))) - 1; // # minor steps per interval
+    nMin = MusEUtil::qwtAbs(int(rint(d_majStep / minStep))) - 1; // # minor steps per interval
 
     // Do the minor steps fit into the interval?
-    if ( qwtAbs(double(nMin +  1) * minStep - d_majStep) >  step_eps * d_majStep)
+    if ( MusEUtil::qwtAbs(double(nMin +  1) * minStep - d_majStep) >  step_eps * d_majStep)
     {
 	nMin = 1;
 	minStep = d_majStep * 0.5;
@@ -408,9 +410,9 @@ bool ScaleDiv::buildLogDiv(int maxMajSteps, int maxMinSteps, double majStep)
 
 
     // Parameter range check
-    maxMajSteps = qwtMax(1, qwtAbs(maxMajSteps));
-    maxMinSteps = qwtMax(0, qwtAbs(maxMinSteps));
-    majStep = qwtAbs(majStep);
+    maxMajSteps = MusEUtil::qwtMax(1, MusEUtil::qwtAbs(maxMajSteps));
+    maxMinSteps = MusEUtil::qwtMax(0, MusEUtil::qwtAbs(maxMinSteps));
+    majStep = MusEUtil::qwtAbs(majStep);
 
     // boundary check
     limRange(d_hBound, LOG_MIN, LOG_MAX);
@@ -440,12 +442,12 @@ bool ScaleDiv::buildLogDiv(int maxMajSteps, int maxMinSteps, double majStep)
     //  Set up major scale divisions
     //
     if (majStep == 0.0)
-       d_majStep = qwtCeil125( width * 0.999999 / double(maxMajSteps));
+       d_majStep = MusEUtil::qwtCeil125( width * 0.999999 / double(maxMajSteps));
     else
        d_majStep = majStep;
 
     // major step must be >= 1 decade
-    d_majStep = qwtMax(d_majStep, 1.0);
+    d_majStep = MusEUtil::qwtMax(d_majStep, 1.0);
 
 
     lFirst = ceil((log10(d_lBound) - step_eps * d_majStep) / d_majStep) * d_majStep;
@@ -454,10 +456,10 @@ bool ScaleDiv::buildLogDiv(int maxMajSteps, int maxMinSteps, double majStep)
     firstTick = pow(10.0, lFirst);
     lastTick = pow(10.0, lLast);
 
-    nMaj = qwtMin(10000, int(rint(qwtAbs(lLast - lFirst) / d_majStep)) + 1);
+    nMaj = MusEUtil::qwtMin(10000, int(rint(MusEUtil::qwtAbs(lLast - lFirst) / d_majStep)) + 1);
 
     d_majMarks.resize(nMaj);
-    qwtLogSpace(d_majMarks.data(), d_majMarks.size(), firstTick, lastTick);
+    MusEUtil::qwtLogSpace(d_majMarks.data(), d_majMarks.size(), firstTick, lastTick);
 
 
     //
@@ -536,15 +538,15 @@ bool ScaleDiv::buildLogDiv(int maxMajSteps, int maxMinSteps, double majStep)
     {
 	
 	// substep width in decades, at least one decade
-	minStep = qwtCeil125( (d_majStep - step_eps * (d_majStep / double(maxMinSteps)))
+	minStep = MusEUtil::qwtCeil125( (d_majStep - step_eps * (d_majStep / double(maxMinSteps)))
 			 /  double(maxMinSteps) );
-	minStep = qwtMax(1.0, minStep);
+	minStep = MusEUtil::qwtMax(1.0, minStep);
 
 	// # subticks per interval
 	nMin = int(rint(d_majStep / minStep)) - 1;
 
 	// Do the minor steps fit into the interval?
-	if ( qwtAbs( double(nMin + 1) * minStep - d_majStep)  >  step_eps * d_majStep)
+	if ( MusEUtil::qwtAbs( double(nMin + 1) * minStep - d_majStep)  >  step_eps * d_majStep)
 	    nMin = 0;
 
 	if (nMin < 1) return TRUE;		// no subticks
@@ -553,7 +555,7 @@ bool ScaleDiv::buildLogDiv(int maxMajSteps, int maxMinSteps, double majStep)
 	buffer.resize((d_majMarks.size() + 1) * nMin );
 	
 	// substep factor = 10^substeps
-	minFactor = qwtMax(pow(10,minStep), 10.0);
+	minFactor = MusEUtil::qwtMax(pow(10,minStep), 10.0);
 
 	// Are there minor ticks below the first major tick?
 	if ( d_lBound < firstTick )
@@ -657,7 +659,7 @@ void ScaleDiv::reset()
       d_log = FALSE;
       }
 
-
+} // namespace MusEWidget
 
 
 
diff --git a/muse2/muse/widgets/scldiv.h b/muse2/muse/widgets/scldiv.h
index a788e7b8..1f91c2db 100644
--- a/muse2/muse/widgets/scldiv.h
+++ b/muse2/muse/widgets/scldiv.h
@@ -27,6 +27,8 @@
 
 #include <QVector>
 
+namespace MusEWidget {
+
 class ScaleDiv
       {
       double d_lBound;
@@ -64,4 +66,6 @@ class ScaleDiv
          bool log, double step = 0.0, bool ascend = TRUE);
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/scldraw.cpp b/muse2/muse/widgets/scldraw.cpp
index cf69852e..c35d04e0 100644
--- a/muse2/muse/widgets/scldraw.cpp
+++ b/muse2/muse/widgets/scldraw.cpp
@@ -30,6 +30,8 @@
 #include "scldraw.h"
 
 
+namespace MusEWidget {
+
 int const ScaleDraw::minLen = 10;
 
 const double step_eps = 1.0e-6;
@@ -222,7 +224,7 @@ void ScaleDraw::draw(QPainter *p) const
 		   hval = majTick - 0.5 * d_scldiv.majStep();
 		
 	       }
-	       if (qwtAbs(val-hval) < step_eps * d_scldiv.majStep())
+	       if (MusEUtil::qwtAbs(val-hval) < step_eps * d_scldiv.majStep())
 		  drawTick(p, val, d_medLen);
 	       else
 		  drawTick(p, val, d_minLen);
@@ -275,10 +277,10 @@ void ScaleDraw::drawTick(QPainter *p, double val, int len) const
       if ((tval <= d_minAngle + 359 * 16) || (tval >= d_minAngle - 359 * 16))
       {
 	  arc = double(tval) / 16.0 * M_PI / 180.0;
-	  x1 = qwtInt(d_xCenter + sin(arc) * d_radius);
-	  x2 = qwtInt(d_xCenter + sin(arc) * (d_radius + double(len)));
-	  y1 = qwtInt(d_yCenter - cos(arc) * d_radius);
-	  y2 = qwtInt(d_yCenter - cos(arc) * (d_radius + double(len)));
+	  x1 = MusEUtil::qwtInt(d_xCenter + sin(arc) * d_radius);
+	  x2 = MusEUtil::qwtInt(d_xCenter + sin(arc) * (d_radius + double(len)));
+	  y1 = MusEUtil::qwtInt(d_yCenter - cos(arc) * d_radius);
+	  y2 = MusEUtil::qwtInt(d_yCenter - cos(arc) * (d_radius + double(len)));
 	  p->drawLine(x1, y1, x2, y2);
       }
       break;
@@ -322,7 +324,7 @@ void ScaleDraw::drawLabel(QPainter *p, double val) const
     tval = transform(val);
 
     // correct rounding errors if val = 0
-    if ((!d_scldiv.logScale()) && (qwtAbs(val) < qwtAbs(step_eps * d_scldiv.majStep())))
+    if ((!d_scldiv.logScale()) && (MusEUtil::qwtAbs(val) < MusEUtil::qwtAbs(step_eps * d_scldiv.majStep())))
        val = 0.0;
 
     label.setNum(val, d_fmt, d_prec);
@@ -353,12 +355,12 @@ void ScaleDraw::drawLabel(QPainter *p, double val) const
 	if ((arc < -M_PI) || (arc > M_PI))
 	   arc -= floor((arc + M_PI) / M_PI * 0.5) * 2.0 * M_PI;
 	
-	xpos = 1 + qwtInt(d_xCenter + (d_radius + double(d_majLen + d_vpad)) * sin(arc));
-	ypos = qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc));
+	xpos = 1 + MusEUtil::qwtInt(d_xCenter + (d_radius + double(d_majLen + d_vpad)) * sin(arc));
+	ypos = MusEUtil::qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc));
 	
 	if (arc < -pi_75)
 	{
-	    p->drawText(xpos - qwtInt(double(fm.width(label))
+	    p->drawText(xpos - MusEUtil::qwtInt(double(fm.width(label))
 				      * (1.0 + (arc + pi_75) * M_2_PI) ),
 			ypos + fm.ascent() - 1,
 			label);
@@ -368,13 +370,13 @@ void ScaleDraw::drawLabel(QPainter *p, double val) const
 	    p->drawText(xpos - fm.width(label),
 			
 			
-			ypos - qwtInt(double(fm.ascent() - 1)
+			ypos - MusEUtil::qwtInt(double(fm.ascent() - 1)
 				      * (arc + M_PI_4) * M_2_PI),
 			label);
 	}
 	else if (arc < pi_4)
 	{
-	    p->drawText(xpos + qwtInt(double(fm.width(label))
+	    p->drawText(xpos + MusEUtil::qwtInt(double(fm.width(label))
 				      * ( arc - M_PI_4 ) * M_2_PI ),
 			ypos,
 			label);
@@ -382,13 +384,13 @@ void ScaleDraw::drawLabel(QPainter *p, double val) const
 	else if (arc < pi_75)
 	{
 	    p->drawText(xpos,
-			ypos + qwtInt(double(fm.ascent() - 1)
+			ypos + MusEUtil::qwtInt(double(fm.ascent() - 1)
 				      * (arc - M_PI_4) * M_2_PI),
 			label);
 	}
 	else
 	{
-	    p->drawText(xpos - qwtInt(double(fm.width(label))
+	    p->drawText(xpos - MusEUtil::qwtInt(double(fm.width(label))
 				      * ( arc - pi_75) * M_2_PI ),
 			ypos + fm.ascent() - 1,
 			label);
@@ -431,8 +433,8 @@ void ScaleDraw::drawBackbone(QPainter *p) const
 	break;
     case Round:
 	
-	a1 = qwtMin(i1(), i2()) - 90 * 16;
-	a2 = qwtMax(i1(), i2()) - 90 * 16;
+	a1 = MusEUtil::qwtMin(i1(), i2()) - 90 * 16;
+	a2 = MusEUtil::qwtMax(i1(), i2()) - 90 * 16;
 	
 	p->drawArc(d_xorg, d_yorg, d_len,
 		   d_len,
@@ -692,7 +694,7 @@ QRect ScaleDraw::maxBoundingRect(QPainter *p) const
 	    while (a > 2880) a -= 5760;
 	    while (a < - 2880) a += 5760;
 
-	    ar = qwtAbs(a);
+	    ar = MusEUtil::qwtAbs(a);
 
 	    if (ar < amin) amin = ar;
 	    if (ar > amax) amax = ar;
@@ -706,18 +708,18 @@ QRect ScaleDraw::maxBoundingRect(QPainter *p) const
 	    while (a > 2880) a -= 5760;
 	    while (a < - 2880) a += 5760;
 
-	    ar = qwtAbs(a);
+	    ar = MusEUtil::qwtAbs(a);
 
 	    if (ar < amin) amin = ar;
 	    if (ar > amax) amax = ar;
 	}
 
 	arc = double(amin) / 16.0 * M_PI / 180.0;
-	r.setTop(qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc))
+	r.setTop(MusEUtil::qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc))
 		 + fm.ascent() );
 
 	arc = double(amax) / 16.0 * M_PI / 180.0;
-	r.setBottom(qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc))
+	r.setBottom(MusEUtil::qwtInt(d_yCenter - (d_radius + double(d_majLen + d_vpad)) * cos(arc))
 		    + fm.height() );
 
 	wmax = d_len + d_majLen + d_hpad + wl;
@@ -763,10 +765,10 @@ void ScaleDraw::setAngleRange(double angle1, double angle2)
 {
     int amin, amax;
 
-    angle1 = qwtLim(angle1, -360.0, 360.0);
-    angle2 = qwtLim(angle2, -360.0, 360.0);
-    amin = int(rint(qwtMin(angle1, angle2) * 16.0));
-    amax = int(rint(qwtMax(angle1, angle2) * 16.0));
+    angle1 = MusEUtil::qwtLim(angle1, -360.0, 360.0);
+    angle2 = MusEUtil::qwtLim(angle2, -360.0, 360.0);
+    amin = int(rint(MusEUtil::qwtMin(angle1, angle2) * 16.0));
+    amax = int(rint(MusEUtil::qwtMax(angle1, angle2) * 16.0));
 
     if (amin == amax)
     {
@@ -842,10 +844,10 @@ int ScaleDraw::maxLabelWidth(QPainter *p, int worst) const
 	{
       val = d_scldiv.majMark(i);
 	    // correct rounding errors if val = 0
-	    if ((!d_scldiv.logScale()) && (qwtAbs(val) < step_eps * qwtAbs(d_scldiv.majStep())))
+	    if ((!d_scldiv.logScale()) && (MusEUtil::qwtAbs(val) < step_eps * MusEUtil::qwtAbs(d_scldiv.majStep())))
 	       val = 0.0;
 	    s.setNum(val, d_fmt, d_prec);
-	    rv = qwtMax(rv,fm.width(s));
+	    rv = MusEUtil::qwtMax(rv,fm.width(s));
 	}
     }
 
@@ -880,7 +882,7 @@ int ScaleDraw::maxLabelWidth(QPainter *p, int worst) const
 //
 //------------------------------------------------------------
 
-
+} // namespace MusEWidget
 
 
 
diff --git a/muse2/muse/widgets/scldraw.h b/muse2/muse/widgets/scldraw.h
index f79a215e..2c1543cd 100644
--- a/muse2/muse/widgets/scldraw.h
+++ b/muse2/muse/widgets/scldraw.h
@@ -31,7 +31,7 @@
 class QPainter;
 class QRect;
 
-class AutoScale;
+namespace MusEWidget {
 
 class ScaleDraw : public DiMap {
    public:
@@ -87,6 +87,8 @@ class ScaleDraw : public DiMap {
       void draw(QPainter *p) const;
       };
 
+} // namespace MusEWidget
+
 #endif
 
 
diff --git a/muse2/muse/widgets/sclif.cpp b/muse2/muse/widgets/sclif.cpp
index 9922429f..93987999 100644
--- a/muse2/muse/widgets/sclif.cpp
+++ b/muse2/muse/widgets/sclif.cpp
@@ -24,6 +24,8 @@
 
 #include "sclif.h"
 
+namespace MusEWidget {
+
 //  ScaleIf - An interface class for widgets containing a scale
 //
 //	This interface class is used to provide classes
@@ -214,3 +216,4 @@ void ScaleIf::setScaleMaxMinor(int ticks)
             }
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/sclif.h b/muse2/muse/widgets/sclif.h
index 0b505b5a..e168dfc3 100644
--- a/muse2/muse/widgets/sclif.h
+++ b/muse2/muse/widgets/sclif.h
@@ -27,6 +27,8 @@
 
 #include "scldraw.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   ScaleIf
 //---------------------------------------------------------
@@ -57,5 +59,7 @@ class ScaleIf
 	int scaleMaxMajor() const {return d_maxMinor;}
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/scrollscale.cpp b/muse2/muse/widgets/scrollscale.cpp
index 6341d6b9..21ed10b6 100644
--- a/muse2/muse/widgets/scrollscale.cpp
+++ b/muse2/muse/widgets/scrollscale.cpp
@@ -35,6 +35,8 @@
 #include "scrollscale.h"
 #include "icons.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   setScale
 //    "val" - slider value in range 0-1024
@@ -524,3 +526,4 @@ int ScrollScale::convertQuickZoomLevelToMag(int zoomlevel)
       return vals[zoomlevel];
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/scrollscale.h b/muse2/muse/widgets/scrollscale.h
index df85075a..0fce5b56 100644
--- a/muse2/muse/widgets/scrollscale.h
+++ b/muse2/muse/widgets/scrollscale.h
@@ -31,6 +31,8 @@ class QResizeEvent;
 class QScrollBar;
 class QToolButton;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   ScrollScale
 //---------------------------------------------------------
@@ -97,5 +99,7 @@ class ScrollScale : public QWidget {
       static int convertQuickZoomLevelToMag(int zoomlvl);
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/section.h b/muse2/muse/widgets/section.h
index a61bf684..02b84355 100644
--- a/muse2/muse/widgets/section.h
+++ b/muse2/muse/widgets/section.h
@@ -23,6 +23,8 @@
 #ifndef __SECTION_H__
 #define __SECTION_H__
 
+namespace MusEWidget {
+
 struct Section {
       int offset;
       unsigned len;
@@ -30,5 +32,7 @@ struct Section {
       int val;
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/shortcutcapturedialog.cpp b/muse2/muse/widgets/shortcutcapturedialog.cpp
index db800a8a..a470d698 100644
--- a/muse2/muse/widgets/shortcutcapturedialog.cpp
+++ b/muse2/muse/widgets/shortcutcapturedialog.cpp
@@ -40,6 +40,8 @@
 #include <QInputEvent>
 #include <QChar>
 
+namespace MusEWidget {
+
 ShortcutCaptureDialog::ShortcutCaptureDialog(QWidget* parent, int index)
    : QDialog(parent)
       {
@@ -123,3 +125,4 @@ void ShortcutCaptureDialog::apply()
       done(key);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/shortcutcapturedialog.h b/muse2/muse/widgets/shortcutcapturedialog.h
index 390da333..9af3f7c2 100644
--- a/muse2/muse/widgets/shortcutcapturedialog.h
+++ b/muse2/muse/widgets/shortcutcapturedialog.h
@@ -38,6 +38,8 @@
 
 class QKeyEvent;
 
+namespace MusEWidget {
+
 class ShortcutCaptureDialog : public QDialog, public Ui::ShortcutCaptureDialogBase
       {
       Q_OBJECT
@@ -55,3 +57,4 @@ class ShortcutCaptureDialog : public QDialog, public Ui::ShortcutCaptureDialogBa
       ~ShortcutCaptureDialog();
       };
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/shortcutconfig.cpp b/muse2/muse/widgets/shortcutconfig.cpp
index c58652fd..8e4d7b1a 100644
--- a/muse2/muse/widgets/shortcutconfig.cpp
+++ b/muse2/muse/widgets/shortcutconfig.cpp
@@ -41,6 +41,8 @@
 #include "shortcutcapturedialog.h"
 #include "shortcuts.h"
 
+namespace MusEWidget {
+
 ShortcutConfig::ShortcutConfig(QWidget* parent)
    : QDialog(parent)
    {
@@ -155,3 +157,5 @@ void ShortcutConfig::assignAll()
       applyButton->setDown(false);
       done(_config_changed);
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/shortcutconfig.h b/muse2/muse/widgets/shortcutconfig.h
index 0346bf04..fe417c05 100644
--- a/muse2/muse/widgets/shortcutconfig.h
+++ b/muse2/muse/widgets/shortcutconfig.h
@@ -40,6 +40,9 @@ class QCloseEvent;
 #include "ui_shortcutconfigbase.h"
 
 #define SHRT_CATEGORY_COL 0
+
+namespace MusEWidget {
+
 enum
       {
       SHRT_SHRTCUT_COL = 0,
@@ -80,4 +83,6 @@ class ShortcutConfig : public QDialog, public Ui::ShortcutConfigBase {
 
 };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/sigedit.cpp b/muse2/muse/widgets/sigedit.cpp
index 950e480a..c2c5a842 100644
--- a/muse2/muse/widgets/sigedit.cpp
+++ b/muse2/muse/widgets/sigedit.cpp
@@ -42,6 +42,8 @@
 
 extern int mtcType;
 
+namespace MusEWidget {
+
 bool Sig::isValid() const
 {
   if((z < 1) || (z > 63))
@@ -752,3 +754,5 @@ void SigEdit::enterPressed()
       {
       emit returnPressed();
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/sigedit.h b/muse2/muse/widgets/sigedit.h
index 38b229a1..3b1ca635 100644
--- a/muse2/muse/widgets/sigedit.h
+++ b/muse2/muse/widgets/sigedit.h
@@ -30,6 +30,8 @@
 class QResizeEvent;
 class QTimerEvent;
 
+namespace MusEWidget {
+
 class SigEditor;
 class SpinBox;
 
@@ -100,4 +102,6 @@ class SigEdit : public QWidget
       void enterPressed();
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/siglabel.cpp b/muse2/muse/widgets/siglabel.cpp
index 9941b018..1a1c9164 100644
--- a/muse2/muse/widgets/siglabel.cpp
+++ b/muse2/muse/widgets/siglabel.cpp
@@ -35,6 +35,8 @@
 #include <QWheelEvent>
 #include <QLabel>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SigLabel
 //    edit Signature Values  (4/4)
@@ -177,3 +179,5 @@ void SigLabel::setFrame(bool flag)
       setFrameStyle(flag ? Panel | Sunken : NoFrame);
       setLineWidth(2);
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/siglabel.h b/muse2/muse/widgets/siglabel.h
index 88617d78..33248e53 100644
--- a/muse2/muse/widgets/siglabel.h
+++ b/muse2/muse/widgets/siglabel.h
@@ -30,6 +30,8 @@
 class QWheelEvent;
 class QMouseEvent;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SigLabel
 //    show/edit time signature
@@ -58,5 +60,8 @@ class SigLabel : public QLabel {
       AL::TimeSignature value() const { return AL::TimeSignature(z, n); }
       void setFrame(bool);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/sigscale.cpp b/muse2/muse/widgets/sigscale.cpp
index 8ec0ca70..bcfb540e 100644
--- a/muse2/muse/widgets/sigscale.cpp
+++ b/muse2/muse/widgets/sigscale.cpp
@@ -32,6 +32,8 @@
 #include "song.h"
 #include "gconfig.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SigScale
 //---------------------------------------------------------
@@ -164,4 +166,4 @@ void SigScale::pdraw(QPainter& p, const QRect& r)
             p.drawLine(xp, 0, xp, h);
       }
 
-
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/sigscale.h b/muse2/muse/widgets/sigscale.h
index 576967cd..9ecacfb1 100644
--- a/muse2/muse/widgets/sigscale.h
+++ b/muse2/muse/widgets/sigscale.h
@@ -27,6 +27,8 @@
 
 class MidiEditor;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SigScale
 //    Time Signature Scale
@@ -57,5 +59,8 @@ class SigScale : public View {
    public:
       SigScale(int* raster, QWidget* parent, int xscale);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/slider.cpp b/muse2/muse/widgets/slider.cpp
index 853eae29..f50c144a 100644
--- a/muse2/muse/widgets/slider.cpp
+++ b/muse2/muse/widgets/slider.cpp
@@ -29,6 +29,7 @@
 
 #include "slider.h"
 
+namespace MusEWidget {
 
 //-------------------------------------------------------------
 //  Slider - The Slider Widget
@@ -108,7 +109,7 @@ Slider::~Slider()
 //-----------------------------------------------------
 void Slider::setThumbLength(int l)
 {
-    d_thumbLength = qwtMax(l,8);
+    d_thumbLength = MusEUtil::qwtMax(l,8);
     d_thumbHalf = d_thumbLength / 2;
     resize(size());
 }
@@ -127,7 +128,7 @@ void Slider::setThumbLength(int l)
 //------------------------------------------------------------
 void Slider::setThumbWidth(int w)
 {
-    d_thumbWidth = qwtMax(w,4);
+    d_thumbWidth = MusEUtil::qwtMax(w,4);
     resize(size());
 }
 
@@ -761,8 +762,8 @@ void Slider::rangeChange()
 //------------------------------------------------------------
 void Slider::setMargins(int hor, int vert)
 {
-    d_xMargin = qwtMax(0, hor);
-    d_yMargin = qwtMin(0, vert);
+    d_xMargin = MusEUtil::qwtMax(0, hor);
+    d_yMargin = MusEUtil::qwtMin(0, vert);
     resize(this->size());
 }
 
@@ -871,3 +872,4 @@ void Slider::setPageStep(double)
       {
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/slider.h b/muse2/muse/widgets/slider.h
index 696d0f0d..a76c5270 100644
--- a/muse2/muse/widgets/slider.h
+++ b/muse2/muse/widgets/slider.h
@@ -30,6 +30,8 @@
 #include "sliderbase.h"
 #include "scldraw.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Slider
 //---------------------------------------------------------
@@ -106,4 +108,7 @@ class Slider : public SliderBase, public ScaleIf
       void setMargins(int x, int y);
   QSize sizeHint(); // const;
       };
+
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/sliderbase.cpp b/muse2/muse/widgets/sliderbase.cpp
index bee1a638..8b85878e 100644
--- a/muse2/muse/widgets/sliderbase.cpp
+++ b/muse2/muse/widgets/sliderbase.cpp
@@ -29,6 +29,8 @@
 #include <QMouseEvent>
 #include <QTimerEvent>
 
+namespace MusEWidget {
+
 //   DESCRIPTION
 // SliderBase is a base class for
 // slider widgets. QwtSliderBase handles the mouse events
@@ -182,7 +184,7 @@ void SliderBase::mousePressEvent(QMouseEvent *e)
                   d_mouseOffset = 0;
                   DoubleRange::incPages(d_direction);
                   emit sliderMoved(value(), _id);
-                  d_tmrID = startTimer(qwtMax(250, 2 * d_updTime));
+                  d_tmrID = startTimer(MusEUtil::qwtMax(250, 2 * d_updTime));
                   break;
   
             case ScrMouse:
@@ -727,6 +729,7 @@ void SliderBase::stepPages(int pages)
 //
 //------------------------------------------------------------
 
+} // namespace MusEWidget
 
 
 
diff --git a/muse2/muse/widgets/sliderbase.h b/muse2/muse/widgets/sliderbase.h
index 78e40335..39860153 100644
--- a/muse2/muse/widgets/sliderbase.h
+++ b/muse2/muse/widgets/sliderbase.h
@@ -30,6 +30,8 @@
 #include <QTime>
 #include <QWidget>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SliderBase
 //---------------------------------------------------------
@@ -109,4 +111,6 @@ class SliderBase : public QWidget, public DoubleRange
       void setId(int i)          { _id = i; }
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/songinfo.h b/muse2/muse/widgets/songinfo.h
index 926d93a8..8e576876 100644
--- a/muse2/muse/widgets/songinfo.h
+++ b/muse2/muse/widgets/songinfo.h
@@ -25,6 +25,8 @@
 class QDialog;
 
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SongInfoWidget
 //   Wrapper around Ui::SongInfo
@@ -37,3 +39,5 @@ class SongInfoWidget : public QDialog, public Ui::SongInfo
    public:
       SongInfoWidget(QDialog *parent = 0) : QDialog(parent) { setupUi(this); }
 };
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/spinbox.cpp b/muse2/muse/widgets/spinbox.cpp
index b263b317..0111158d 100644
--- a/muse2/muse/widgets/spinbox.cpp
+++ b/muse2/muse/widgets/spinbox.cpp
@@ -24,6 +24,8 @@
 #include <QEvent>
 #include "spinbox.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SpinBox
 //---------------------------------------------------------
@@ -97,3 +99,4 @@ void SpinBox::stepDown()
     _clearFocus = true;
 }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/spinbox.h b/muse2/muse/widgets/spinbox.h
index 5f870eb5..01cd6ad5 100644
--- a/muse2/muse/widgets/spinbox.h
+++ b/muse2/muse/widgets/spinbox.h
@@ -30,6 +30,8 @@
 #include <QSpinBox>
 #include <QEvent>
 
+namespace MusEWidget { 
+
 //---------------------------------------------------------
 //   SpinBox
 //---------------------------------------------------------
@@ -54,5 +56,7 @@ class SpinBox : public QSpinBox {
       SpinBox(int minValue, int maxValue, int step = 1, QWidget* parent=0);
 };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/spinboxFP.cpp b/muse2/muse/widgets/spinboxFP.cpp
index 52b94e03..696e589f 100644
--- a/muse2/muse/widgets/spinboxFP.cpp
+++ b/muse2/muse/widgets/spinboxFP.cpp
@@ -29,6 +29,8 @@
 
 #include "spinboxFP.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SpinBoxFP
 //---------------------------------------------------------
@@ -184,4 +186,6 @@ int SpinBoxFP::valueFromText(const QString& text) const
       return QSpinBox::valueFromText(text);
       }
 
-*/
\ No newline at end of file
+*/
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/spinboxFP.h b/muse2/muse/widgets/spinboxFP.h
index 2b9d65f0..81fc4876 100644
--- a/muse2/muse/widgets/spinboxFP.h
+++ b/muse2/muse/widgets/spinboxFP.h
@@ -29,6 +29,8 @@
 //class QValidator;
 //class QDoubleValidator;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SpinBoxFP
 //---------------------------------------------------------
@@ -64,5 +66,7 @@ class SpinBoxFP : public QDoubleSpinBox {
       //int decimals() const { return _decimals; }
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/splitter.cpp b/muse2/muse/widgets/splitter.cpp
index fcc74214..09220b24 100644
--- a/muse2/muse/widgets/splitter.cpp
+++ b/muse2/muse/widgets/splitter.cpp
@@ -26,6 +26,8 @@
 #include <QList>
 #include <QStringList>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Splitter
 //---------------------------------------------------------
@@ -92,3 +94,5 @@ void Splitter::readStatus(Xml& xml)
                   }
             }
       }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/splitter.h b/muse2/muse/widgets/splitter.h
index 1f921309..3121fe87 100644
--- a/muse2/muse/widgets/splitter.h
+++ b/muse2/muse/widgets/splitter.h
@@ -27,6 +27,8 @@
 
 class Xml;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   Splitter
 //---------------------------------------------------------
@@ -40,5 +42,7 @@ class Splitter : public QSplitter {
       void readStatus(Xml&);
       };
 
+}
+
 #endif
 
diff --git a/muse2/muse/widgets/swidget.cpp b/muse2/muse/widgets/swidget.cpp
index 06e3f91d..f8461977 100644
--- a/muse2/muse/widgets/swidget.cpp
+++ b/muse2/muse/widgets/swidget.cpp
@@ -24,6 +24,8 @@
 
 #include <QResizeEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //    resizeEvent
 //---------------------------------------------------------
@@ -33,3 +35,4 @@ void SWidget::resizeEvent(QResizeEvent* ev)
       emit heightChanged(ev->size().height());
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/swidget.h b/muse2/muse/widgets/swidget.h
index 50f55b84..0412ac41 100644
--- a/muse2/muse/widgets/swidget.h
+++ b/muse2/muse/widgets/swidget.h
@@ -25,6 +25,8 @@
 
 #include <QWidget>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   SWidget
 //    a simple widget which emits a heighChanged signal
@@ -43,5 +45,7 @@ class SWidget : public QWidget {
       SWidget(QWidget* parent) : QWidget(parent) {}
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/tb1.cpp b/muse2/muse/widgets/tb1.cpp
index fdd08e2a..272359f0 100644
--- a/muse2/muse/widgets/tb1.cpp
+++ b/muse2/muse/widgets/tb1.cpp
@@ -35,6 +35,8 @@
 #include "poslabel.h"
 #include "pitchlabel.h"
 
+namespace MusEWidget {
+
 static int rasterTable[] = {
       //------                8    4     2
       1, 4,  8, 16, 32,  64, 128, 256,  512, 1024,
@@ -208,3 +210,4 @@ void Toolbar1::setPitchMode(bool /*flag*/)
 //        pitch->setPitchMode(flag);
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/tb1.h b/muse2/muse/widgets/tb1.h
index eb1d7269..93181c39 100644
--- a/muse2/muse/widgets/tb1.h
+++ b/muse2/muse/widgets/tb1.h
@@ -28,11 +28,14 @@
 class QToolButton;
 class QTableWidget;
 
-class PosLabel;
-class PitchLabel;
 class Track;
 class LabelCombo;
 
+namespace MusEWidget {
+
+class PitchLabel;
+class PosLabel;
+
 //---------------------------------------------------------
 //   Toolbar1
 //---------------------------------------------------------
@@ -68,4 +71,6 @@ class Toolbar1 : public QToolBar {
       void setPitchMode(bool flag);
       };
 
+} // namespace MusEWidget
+
 #endif
diff --git a/muse2/muse/widgets/tempolabel.cpp b/muse2/muse/widgets/tempolabel.cpp
index 526a4245..cdbc029d 100644
--- a/muse2/muse/widgets/tempolabel.cpp
+++ b/muse2/muse/widgets/tempolabel.cpp
@@ -25,6 +25,8 @@
 
 #include "tempolabel.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   TempoLabel
 //---------------------------------------------------------
@@ -135,4 +137,4 @@ void TempoEdit::setValue(double val)
 //        return lrint(60000000.0/value());
 //      }
 
-
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/tempolabel.h b/muse2/muse/widgets/tempolabel.h
index 7604cae8..682c1e37 100644
--- a/muse2/muse/widgets/tempolabel.h
+++ b/muse2/muse/widgets/tempolabel.h
@@ -26,6 +26,8 @@
 #include <QLabel>
 #include <QDoubleSpinBox>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   TempoLabel
 //---------------------------------------------------------
@@ -74,5 +76,7 @@ class TempoEdit : public QDoubleSpinBox {
       //int tempo() const;
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/transformbase.ui b/muse2/muse/widgets/transformbase.ui
index 578b4a97..ffa56338 100644
--- a/muse2/muse/widgets/transformbase.ui
+++ b/muse2/muse/widgets/transformbase.ui
@@ -417,7 +417,7 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="SpinBoxFP" name="procVal1a">
+       <widget class="MusEWidget::SpinBoxFP" name="procVal1a">
         <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
@@ -453,21 +453,21 @@
        </widget>
       </item>
       <item row="2" column="2">
-        <widget class="SpinBoxFP" name="procVal2a">
+        <widget class="MusEWidget::SpinBoxFP" name="procVal2a">
          <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
        </widget>
       </item>
       <item row="2" column="3">
-        <widget class="SpinBoxFP" name="procLenA">
+        <widget class="MusEWidget::SpinBoxFP" name="procLenA">
           <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
        </widget>
       </item>
       <item row="2" column="4">
-        <widget class="SpinBoxFP" name="procPosA">
+        <widget class="MusEWidget::SpinBoxFP" name="procPosA">
           <property name="maximum" stdset="0">
          <number>99999999</number>
         </property>
@@ -798,14 +798,14 @@
        </widget>
       </item>
       <item row="3" column="4">
-        <widget class="SpinBoxFP" name="selBarB">
+        <widget class="MusEWidget::SpinBoxFP" name="selBarB">
         <property name="decimals" stdset="0">
          <number>3</number>
         </property>
        </widget>
       </item>
       <item row="2" column="4">
-        <widget class="SpinBoxFP" name="selBarA">
+        <widget class="MusEWidget::SpinBoxFP" name="selBarA">
         <property name="minimum" stdset="0">
          <number>1000</number>
         </property>
@@ -974,7 +974,7 @@
          </widget>
         </item>
         <item>
-         <widget class="ComboQuant" name="funcQuantVal" native="true"/>
+         <widget class="MusEWidget::ComboQuant" name="funcQuantVal" native="true"/>
         </item>
        </layout>
       </widget>
@@ -986,12 +986,12 @@
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
    <customwidget>
-     <class>SpinBoxFP</class>
+     <class>MusEWidget::SpinBoxFP</class>
      <extends>QDoubleSpinBox</extends>
      <header>spinboxFP.h</header>
    </customwidget>
   <customwidget>
-   <class>ComboQuant</class>
+   <class>MusEWidget::ComboQuant</class>
    <extends>QComboBox</extends>
    <header>comboQuant.h</header>
   </customwidget>
diff --git a/muse2/muse/widgets/ttoolbutton.cpp b/muse2/muse/widgets/ttoolbutton.cpp
index 1703083f..6bf43b1f 100644
--- a/muse2/muse/widgets/ttoolbutton.cpp
+++ b/muse2/muse/widgets/ttoolbutton.cpp
@@ -27,6 +27,8 @@
 #include "gconfig.h"
 #include "icons.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   drawButton
 //---------------------------------------------------------
@@ -41,4 +43,4 @@ void TransparentToolButton::drawButton(QPainter* p)
       p->drawPixmap(QPoint((w - pm.width())/2, (h - pm.height())/2), pm);
       }
 
-
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/ttoolbutton.h b/muse2/muse/widgets/ttoolbutton.h
index 8a79f16f..b61d2f7c 100644
--- a/muse2/muse/widgets/ttoolbutton.h
+++ b/muse2/muse/widgets/ttoolbutton.h
@@ -25,6 +25,8 @@
 
 #include <QToolButton>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   TransparentToolButton
 //---------------------------------------------------------
@@ -39,5 +41,7 @@ class TransparentToolButton : public QToolButton {
          : QToolButton(parent) {setObjectName(name);}
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/unusedwavefiles.cpp b/muse2/muse/widgets/unusedwavefiles.cpp
index 810105bf..07fcbf0c 100644
--- a/muse2/muse/widgets/unusedwavefiles.cpp
+++ b/muse2/muse/widgets/unusedwavefiles.cpp
@@ -31,6 +31,8 @@
 #include "globals.h"
 #include "app.h"
 
+namespace MusEWidget {
+
 UnusedWaveFiles::UnusedWaveFiles(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::UnusedWaveFiles)
@@ -117,3 +119,5 @@ void UnusedWaveFiles::accept()
     }
     QDialog::accept();
 }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/unusedwavefiles.h b/muse2/muse/widgets/unusedwavefiles.h
index d3a66234..fba41212 100644
--- a/muse2/muse/widgets/unusedwavefiles.h
+++ b/muse2/muse/widgets/unusedwavefiles.h
@@ -29,6 +29,8 @@ namespace Ui {
     class UnusedWaveFiles;
 }
 
+namespace MusEWidget {
+
 class UnusedWaveFiles : public QDialog
 {
     Q_OBJECT
@@ -45,4 +47,6 @@ private:
     Ui::UnusedWaveFiles *ui;
 };
 
+} // namespace MusEWidget
+
 #endif // UNUSEDWAVEFILES_H
diff --git a/muse2/muse/widgets/utils.cpp b/muse2/muse/widgets/utils.cpp
index c2c60d12..e46d265c 100644
--- a/muse2/muse/widgets/utils.cpp
+++ b/muse2/muse/widgets/utils.cpp
@@ -34,6 +34,8 @@
 
 #include "utils.h"
 
+namespace MusEUtil {
+
 //---------------------------------------------------------
 //   curTime
 //---------------------------------------------------------
@@ -400,4 +402,6 @@ QGradient gGradientFromQColor(const QColor& c, const QPointF& start, const QPoin
   gradient.setColorAt(1, c1);
   
   return gradient;
-}
\ No newline at end of file
+}
+
+} // namespace MusEUtils
diff --git a/muse2/muse/widgets/utils.h b/muse2/muse/widgets/utils.h
index 5862443a..b74ba394 100644
--- a/muse2/muse/widgets/utils.h
+++ b/muse2/muse/widgets/utils.h
@@ -31,6 +31,7 @@ class QCanvas;
 class QPointF;
 class QColor;
 
+namespace MusEUtil {
 
 extern QString bitmap2String(int bm);
 extern int string2bitmap(const QString& str);
@@ -45,5 +46,7 @@ extern QFrame* vLine(QWidget* parent);
 extern void dump(const unsigned char* p, int n);
 extern double curTime();
 
+} // namespace MusEUtils
+
 #endif
 
diff --git a/muse2/muse/widgets/verticalmeter.cpp b/muse2/muse/widgets/verticalmeter.cpp
index e76d7015..b0e0198f 100644
--- a/muse2/muse/widgets/verticalmeter.cpp
+++ b/muse2/muse/widgets/verticalmeter.cpp
@@ -32,6 +32,8 @@
 #include "gconfig.h"
 #include "fastlog.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   VerticalMeter
 //---------------------------------------------------------
@@ -269,3 +271,5 @@ void VerticalMeter::resizeEvent(QResizeEvent* ev)
     QRegion maskregion(rounded_rect.toFillPolygon().toPolygon());
     setMask(maskregion);
     }
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/verticalmeter.h b/muse2/muse/widgets/verticalmeter.h
index 3579600a..d6bee245 100644
--- a/muse2/muse/widgets/verticalmeter.h
+++ b/muse2/muse/widgets/verticalmeter.h
@@ -31,6 +31,8 @@ class QResizeEvent;
 class QMouseEvent;
 class QPainter;
 
+namespace MusEWidget {
+
 class VerticalMeter : public Meter {
       Q_OBJECT
     
@@ -56,5 +58,8 @@ class VerticalMeter : public Meter {
       VerticalMeter(QWidget* parent, MeterType type = DBMeter);
       void setRange(double min, double max);
       };
+
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/view.cpp b/muse2/muse/widgets/view.cpp
index 99d86d3c..9be66ed5 100644
--- a/muse2/muse/widgets/view.cpp
+++ b/muse2/muse/widgets/view.cpp
@@ -42,6 +42,8 @@
 //  just ate up all the time no matter what I tried.
 //#defines VIEW_USE_DOUBLE_BUFFERING 1
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   View::View
 //    double xMag = (xmag < 0) ? 1.0/-xmag : double(xmag)
@@ -977,3 +979,5 @@ QRect View::devToVirt(const QRect& r)
     return QRect(x, y, w, h);
 }
 */
+
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/view.h b/muse2/muse/widgets/view.h
index 1569d60f..e5f33657 100644
--- a/muse2/muse/widgets/view.h
+++ b/muse2/muse/widgets/view.h
@@ -34,6 +34,8 @@ class QPainter;
 class QPixmap;
 class QResizeEvent;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   View
 //    horizontal View with double buffering
@@ -126,5 +128,7 @@ class View : public QWidget {
       int rmapx(int x) const;
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/vscale.cpp b/muse2/muse/widgets/vscale.cpp
index c4a9df08..22af7889 100644
--- a/muse2/muse/widgets/vscale.cpp
+++ b/muse2/muse/widgets/vscale.cpp
@@ -25,6 +25,8 @@
 #include <QPainter>
 #include <QPaintEvent>
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   paintEvent
 //---------------------------------------------------------
@@ -41,3 +43,4 @@ void VScale::paintEvent(QPaintEvent*)
       p.end();
       }
 
+} // namespace MusEWidget
diff --git a/muse2/muse/widgets/vscale.h b/muse2/muse/widgets/vscale.h
index bba35c04..e926b3cb 100644
--- a/muse2/muse/widgets/vscale.h
+++ b/muse2/muse/widgets/vscale.h
@@ -27,6 +27,8 @@
 
 class QPaintEvent;
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   VScale
 //---------------------------------------------------------
@@ -40,5 +42,7 @@ class VScale : public QWidget {
       VScale(QWidget* parent=0) : QWidget(parent) {setFixedWidth(18);}
       };
 
+} // namespace MusEWidget
+
 #endif
 
diff --git a/muse2/muse/widgets/wtscale.cpp b/muse2/muse/widgets/wtscale.cpp
index 1ffabae3..3b6aa6eb 100644
--- a/muse2/muse/widgets/wtscale.cpp
+++ b/muse2/muse/widgets/wtscale.cpp
@@ -33,6 +33,8 @@
 #include "../marker/marker.h"
 #include "icons.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   WTScale
 //    Wave Time Scale
@@ -299,3 +301,5 @@ void WTScale::pdraw(QPainter& p, const QRect& r)
             }
       }
 
+} // namespace MusEWidget
+
diff --git a/muse2/muse/widgets/wtscale.h b/muse2/muse/widgets/wtscale.h
index dd6d5eef..b25de627 100644
--- a/muse2/muse/widgets/wtscale.h
+++ b/muse2/muse/widgets/wtscale.h
@@ -25,6 +25,8 @@
 
 #include "view.h"
 
+namespace MusEWidget {
+
 //---------------------------------------------------------
 //   WTScale
 //    scale for wave track
@@ -57,5 +59,8 @@ class WTScale : public View {
       WTScale(int* raster, QWidget* parent, int xscale);
       void setBarLocator(bool f) { barLocator = f; }
       };
+
+} // namespace MusEWidget
+
 #endif