private:
void do_start_note (Midi_note* note_p);
void do_stop_notes (Moment now_mom);
void output_event (Moment now_mom, Midi_item* l);
private:
void do_start_note (Midi_note* note_p);
void do_stop_notes (Moment now_mom);
void output_event (Moment now_mom, Midi_item* l);