diff --git a/include/note_play_handle.h b/include/note_play_handle.h
index ca58047e2..78a696b9b 100644
--- a/include/note_play_handle.h
+++ b/include/note_play_handle.h
@@ -27,6 +27,8 @@
 #ifndef _NOTE_PLAY_HANDLE_H
 #define _NOTE_PLAY_HANDLE_H
 
+#include <qobject.h>
+
 #include "play_handle.h"
 #include "basic_filters.h"
 #include "note.h"
@@ -39,12 +41,15 @@ typedef vvector<notePlayHandle *> notePlayHandleVector;
 typedef vvector<const notePlayHandle *> constNotePlayHandleVector;
 
 
-class notePlayHandle : public playHandle, public note
+class notePlayHandle : public QObject, public playHandle, public note
 {
+	Q_OBJECT
 public:
 	void * m_pluginData;
 	basicFilters<> * m_filter;
 
+	float m_frequency;
+
 	notePlayHandle( instrumentTrack * _chnl_trk, const f_cnt_t _frames_ahead,
 					const f_cnt_t _frames, const note & _n,
 					const bool _arp_note = FALSE );
@@ -191,6 +196,10 @@ private:
 					// sub-note)
 	bool m_muted;			// indicates whether note is muted
 
+
+private slots:
+	void updateFrequency( void );
+
 } ;
 
 #endif
diff --git a/src/core/note_play_handle.cpp b/src/core/note_play_handle.cpp
index 2acc87051..b05a5a0d0 100644
--- a/src/core/note_play_handle.cpp
+++ b/src/core/note_play_handle.cpp
@@ -59,6 +59,10 @@ notePlayHandle::notePlayHandle( instrumentTrack * _it,
 	m_arpNote( _arp_note ),
 	m_muted( FALSE )
 {
+	connect( m_instrumentTrack, SIGNAL( baseNoteChanged() ),
+					this, SLOT( updateFrequency() ) );
+	updateFrequency();
+
 	setFrames( _frames );
 	if( !configManager::inst()->value( "ui",
 						"manualchannelpiano" ).toInt() )
@@ -391,4 +395,15 @@ bool notePlayHandle::operator==( const notePlayHandle & _nph ) const
 
 
 
+
+void notePlayHandle::updateFrequency( void )
+{
+	m_frequency = m_instrumentTrack->frequency( this );
+}
+
+
+
+#include "note_play_handle.moc"
+
+
 #endif