+ static void next_notes_correction (Grob *, Grob *, Real, Real, Real *, Real *);
+ static void next_note_correction (Grob *, Grob *, Interval, Real, Real, Real*, Real *, int *);
+ DECLARE_GROB_INTERFACE();
+ static void get_spacing_params (Grob *, Real *, Real *);
+
+ static Interval bar_y_positions (Grob *);