virtual void start_translation_timestep ();
virtual void acknowledge_grob (Grob_info);
virtual void process_acknowledged_grobs ();
virtual void start_translation_timestep ();
virtual void acknowledge_grob (Grob_info);
virtual void process_acknowledged_grobs ();
don't look at the staff-position, since we can't be sure
whether Clef_engraver already applied a vertical shift.
*/
don't look at the staff-position, since we can't be sure
whether Clef_engraver already applied a vertical shift.
*/