diff --git a/libs/ardour/ardour/midi_region.h b/libs/ardour/ardour/midi_region.h
index 31a81e7aed..3d65dc699f 100644
--- a/libs/ardour/ardour/midi_region.h
+++ b/libs/ardour/ardour/midi_region.h
@@ -57,8 +57,6 @@ template<typename T> class MidiRingBuffer;
 class LIBARDOUR_API MidiRegion : public Region
 {
   public:
-	static void make_property_quarks ();
-
 	~MidiRegion();
 
 	bool do_export (std::string path) const;
diff --git a/libs/ardour/globals.cc b/libs/ardour/globals.cc
index ce509c062d..86d29e48b2 100644
--- a/libs/ardour/globals.cc
+++ b/libs/ardour/globals.cc
@@ -552,7 +552,6 @@ ARDOUR::init (bool try_optimization, const char* localedir, bool with_gui)
 	Operations::make_operations_quarks ();
 	SessionObject::make_property_quarks ();
 	Region::make_property_quarks ();
-	MidiRegion::make_property_quarks ();
 	AudioRegion::make_property_quarks ();
 	RouteGroup::make_property_quarks ();
 	Playlist::make_property_quarks ();
diff --git a/libs/temporal/tempo.cc b/libs/temporal/tempo.cc
index f6495f5612..a26c4c89ca 100644
--- a/libs/temporal/tempo.cc
+++ b/libs/temporal/tempo.cc
@@ -40,7 +40,7 @@ std::string Meter::xml_node_name = X_("Meter");
 
 superclock_t Temporal::superclock_ticks_per_second = 508032000; // 2^10 * 3^4 * 5^3 * 7^2
 
-SerializedRCUManager<TempoMap> TempoMap::_map_mgr (new TempoMap (Tempo (120.0), Meter (4, 4), 44100));
+SerializedRCUManager<TempoMap> TempoMap::_map_mgr (0);
 thread_local TempoMap::SharedPtr TempoMap::_tempo_map_p;
 
 void