diff --git a/libs/ardour/ardour/scene_change.h b/libs/ardour/ardour/scene_change.h
index 4ad0ce5f39..51fe14b7f9 100644
--- a/libs/ardour/ardour/scene_change.h
+++ b/libs/ardour/ardour/scene_change.h
@@ -40,12 +40,17 @@ class SceneChange : public PBD::Stateful
         void set_color (uint32_t);
         bool color_out_of_bounds() const { return _color == out_of_bound_color; }
         static const uint32_t out_of_bound_color;
+
+        bool active () const { return _active; }
+        void set_active (bool);
         
         PBD::Signal0<void> ColorChanged;
+        PBD::Signal0<void> ActiveChanged;
 
     protected:
         /* derived classes are responsible for serializing & deserializing this value */
         uint32_t _color;
+        bool     _active;
 
 };
 
diff --git a/libs/ardour/midi_scene_changer.cc b/libs/ardour/midi_scene_changer.cc
index 4efcf95554..d3c6753087 100644
--- a/libs/ardour/midi_scene_changer.cc
+++ b/libs/ardour/midi_scene_changer.cc
@@ -95,6 +95,10 @@ MIDISceneChanger::gather (const Locations::LocationList& locations)
 void
 MIDISceneChanger::rt_deliver (MidiBuffer& mbuf, framepos_t when, boost::shared_ptr<MIDISceneChange> msc)
 {
+        if (!msc->active()) {
+                return;
+        }
+
 	uint8_t buf[4];
 	size_t cnt;
 
@@ -120,6 +124,10 @@ MIDISceneChanger::rt_deliver (MidiBuffer& mbuf, framepos_t when, boost::shared_p
 void
 MIDISceneChanger::non_rt_deliver (boost::shared_ptr<MIDISceneChange> msc)
 {
+        if (!msc->active()) {
+                return;
+        }
+
 	uint8_t buf[4];
 	size_t cnt;
 	boost::shared_ptr<AsyncMIDIPort> aport = boost::dynamic_pointer_cast<AsyncMIDIPort>(output_port);
diff --git a/libs/ardour/scene_change.cc b/libs/ardour/scene_change.cc
index 6560a7ca2f..322b37a195 100644
--- a/libs/ardour/scene_change.cc
+++ b/libs/ardour/scene_change.cc
@@ -41,6 +41,7 @@ SceneChange::factory (const XMLNode& node, int version)
 
 SceneChange::SceneChange ()
         : _color (out_of_bound_color)
+        , _active (true)
 {
 }
 
@@ -56,3 +57,12 @@ SceneChange::color() const
 {
         return _color;
 }
+
+void
+SceneChange::set_active (bool yn)
+{
+        if (_active != yn) {
+                _active = yn;
+                ActiveChanged (); /* EMIT SIGNAL */
+        }
+}