#include "pbd/pthread_utils.h"
#include "pbd/basename.h"
-#include "ardour/audioengine.h"
#include "ardour/debug.h"
#include "ardour/midi_model.h"
-#include "ardour/midi_ring_buffer.h"
#include "ardour/midi_state_tracker.h"
#include "ardour/midi_source.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"
#include "ardour/source_factory.h"
-#include "ardour/tempo.h"
#include "i18n.h"
+namespace ARDOUR { template <typename T> class MidiRingBuffer; }
+
using namespace std;
using namespace ARDOUR;
using namespace PBD;