diff --git a/gtk2_ardour/pianokeyboard.cc b/gtk2_ardour/pianokeyboard.cc
index 9c56ae8a0e..baf31c3005 100644
--- a/gtk2_ardour/pianokeyboard.cc
+++ b/gtk2_ardour/pianokeyboard.cc
@@ -356,6 +356,13 @@ APianoKeyboard::bind_keys_qwerty ()
 	bind_key ("o", 38);
 	bind_key ("0", 39);
 	bind_key ("p", 40);
+
+	/* ignore */
+	bind_key ("a", -2);
+	bind_key ("f", -3);
+	bind_key ("1", -4);
+	bind_key ("4", -5);
+	bind_key ("8", -6);
 }
 
 void
@@ -547,7 +554,10 @@ APianoKeyboard::on_key_press_event (GdkEventKey* event)
 	char* key = get_keycode (event);
 	int note = key_binding (key);
 
-	if (note < 0) {
+	if (note < -1) {
+		return true;
+	}
+	else if (note < 0) {
 		return false;
 	}
 
@@ -592,6 +602,9 @@ APianoKeyboard::on_key_release_event (GdkEventKey* event)
 		sustain_release ();
 		return true;
 	}
+	if (note < -1) {
+		return true;
+	}
 
 	std::map<std::string, int>::const_iterator kv = _note_stack.find (key);
 	if (kv == _note_stack.end ()) {