diff --git a/libs/ardour/ardour/midi_model.h b/libs/ardour/ardour/midi_model.h
index 12d3e218ee..6b726775a9 100644
--- a/libs/ardour/ardour/midi_model.h
+++ b/libs/ardour/ardour/midi_model.h
@@ -327,6 +327,7 @@ public:
 	void transpose (NoteDiffCommand *, const NotePtr, int);
 
 	void track_state (timepos_t const & when, MidiStateTracker&) const;
+	void render (const ReadLock& lock, Evoral::EventSink<Temporal::Beats>& dst);
 
   protected:
 	int resolve_overlaps_unlocked (const NotePtr, void* arg = 0);
diff --git a/libs/ardour/midi_model.cc b/libs/ardour/midi_model.cc
index 1387841c18..de4f2f1270 100644
--- a/libs/ardour/midi_model.cc
+++ b/libs/ardour/midi_model.cc
@@ -1882,3 +1882,11 @@ MidiModel::track_state (timepos_t const & when, MidiStateTracker& mst) const
 		mst.track (ev.buffer());
 	}
 }
+
+void
+MidiModel::render (const ReadLock& lock, Evoral::EventSink<Temporal::Beats>& dst)
+{
+	for (auto const & ev : *this) {
+		dst.write (ev.time(), Evoral::MIDI_EVENT, ev.size(), ev.buffer());
+	}
+}