static void set_right_head (Grob *, Item *);
static Item *get_right_head (Grob *);
DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM));
static void set_right_head (Grob *, Item *);
static Item *get_right_head (Grob *);
DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM));
static Molecule create_ledger_line (Interval, Grob *);
static Molecule create_streepjes (Grob *, int, int, Interval);
};
static Molecule create_ledger_line (Interval, Grob *);
static Molecule create_streepjes (Grob *, int, int, Interval);
};