1 files changed, 10 insertions, 6 deletions
diff --git a/muse2/muse/arranger/pcanvas.h b/muse2/muse/arranger/pcanvas.h
index 2bce9035..7eec87c6 100644
--- a/muse2/muse/arranger/pcanvas.h
+++ b/muse2/muse/arranger/pcanvas.h
@@ -36,9 +36,17 @@ class QMouseEvent;
 class QKeyEvent;
 class QEvent;
 class QDragEnterEvent;
+class QLineEdit;
+
+class MidiEditor;
+class QMenu;
+class Xml;
+class CtrlVal;
 
 #define beats     4
 
+namespace MusEArranger {
+
 //---------------------------------------------------------
 //   NPart
 //    ''visual'' Part
@@ -68,12 +76,6 @@ struct AutomationObject {
   ControllerVals controllerState;
 };
 
-class QLineEdit;
-class MidiEditor;
-class QMenu;
-class Xml;
-class CtrlVal;
-
 //---------------------------------------------------------
 //   PartCanvas
 //---------------------------------------------------------
@@ -176,5 +178,7 @@ class PartCanvas : public MusEWidget::Canvas {
    void controllerChanged(Track *t);
 };
 
+} // namespace MusEArranger
+
 #endif