void score_slope_direction (Beam_configuration *config) const;
void score_slope_musical (Beam_configuration *config) const;
void score_stem_lengths (Beam_configuration *config) const;
void score_slope_direction (Beam_configuration *config) const;
void score_slope_musical (Beam_configuration *config) const;
void score_stem_lengths (Beam_configuration *config) const;