Context *get_voice_to_lyrics (Context *lyrics);
Grob *get_current_note_head (Context *voice, bool include_grace_notes);
Grob *get_current_rest (Context *voice);
Context *get_voice_to_lyrics (Context *lyrics);
Grob *get_current_note_head (Context *voice, bool include_grace_notes);
Grob *get_current_rest (Context *voice);