diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index 2bd5ad10b..05192e31e 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -844,6 +844,11 @@ void PianoRoll::setCurrentMidiClip( MidiClip* newMidiClip )
 {
 	if( hasValidMidiClip() )
 	{
+		m_midiClip->instrumentTrack()->pianoModel()->disconnect(this);
+		m_midiClip->instrumentTrack()->firstKeyModel()->disconnect(this);
+		m_midiClip->instrumentTrack()->lastKeyModel()->disconnect(this);
+		m_midiClip->instrumentTrack()->microtuner()->keymapModel()->disconnect(this);
+		m_midiClip->instrumentTrack()->microtuner()->keyRangeImportModel()->disconnect(this);
 		m_midiClip->instrumentTrack()->disconnect( this );
 		m_midiClip->disconnect(this);
 	}