- Metric metric_at (jack_nframes_t) const;
- void bbt_time_with_metric (jack_nframes_t, BBT_Time&, const Metric&) const;
+ Metric metric_at (nframes_t) const;
+ void bbt_time_with_metric (nframes_t, BBT_Time&, const Metric&) const;
+
+ void change_existing_tempo_at (nframes_t, double bpm, double note_type);
+ void change_initial_tempo (double bpm, double note_type);
+
+ int n_tempos () const;
+ int n_meters () const;
+
+ sigc::signal<void,ARDOUR::Change> StateChanged;