_session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_routes, this, _1), gui_context());
_session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
_session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempo_map_changed, this, _1), gui_context());
+ _session->tempo_map().MetricPositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::marker_position_changed, this), gui_context());
_session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
_session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
_session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Editor::session_state_saved, this, _1), gui_context());