1 files changed, 15 insertions, 2 deletions
diff --git a/muse2/muse/helper.h b/muse2/muse/helper.h
index fe4d018f..e86a8949 100644
--- a/muse2/muse/helper.h
+++ b/muse2/muse/helper.h
@@ -23,13 +23,26 @@
 #ifndef __HELPER_H__
 #define __HELPER_H__
 
-#include <QString>
+#include <set>
+
+class QActionGroup;
+class QString;
+class QMenu;
+class QWidget;
 
 class Part;
 
-extern QString pitch2string(int v);
+namespace MusEUtil {
+
+QString pitch2string(int v);
 
 Part* partFromSerialNumber(int serial);
 
+bool any_event_selected(const std::set<Part*>&, bool in_range=false);
+
+QMenu* populateAddSynth(QWidget* parent);
+QActionGroup* populateAddTrack(QMenu* addTrack);
+
+}
 #endif