static Grob *accidentals (Grob *me);
static Grob *arpeggio (Grob *me);
static Slice head_positions_interval (Grob *me);
- static void translate_rests (Grob *me, int dy);
static Grob *first_head (Grob *me);
static Grob *get_rest (Grob *me);
static void set_stem (Grob *me, Grob *);