ADD_ACKNOWLEDGER (Drum_notes_engraver, stem);
ADD_ACKNOWLEDGER (Drum_notes_engraver, note_column);
ADD_TRANSLATOR (Drum_notes_engraver,
/* doc */ "Generate noteheads.",
/* create */ "NoteHead Dots Script",
ADD_ACKNOWLEDGER (Drum_notes_engraver, stem);
ADD_ACKNOWLEDGER (Drum_notes_engraver, note_column);
ADD_TRANSLATOR (Drum_notes_engraver,
/* doc */ "Generate noteheads.",
/* create */ "NoteHead Dots Script",