- int importance = infos_[i + 1].rhythmic_importance_;
- int count = (importance < 0 && options.subdivide_beams_)
- ? 1 : min (min (infos_[i].count (non_flag_dir),
- infos_[i + non_flag_dir].count (-non_flag_dir)),
- infos_[i - non_flag_dir].count (non_flag_dir));
+ int count =
+ (infos_[i + 1].rhythmic_importance_ < 0 &&
+ options.subdivide_beams_)
+ // we're left of a subdivision
+ ? (i != infos_.size () - 2)
+ // respect the beam count for shortened beams ...
+ ? max (beam_count_for_rhythmic_position (i + 1),
+ beam_count_for_length (remaining_length (i + 1)))
+ // ... except if there's only one trailing stem
+ : beam_count_for_rhythmic_position (i + 1)
+
+ // we're at any other stem
+ : min (min (infos_[i].count (non_flag_dir),
+ infos_[i + non_flag_dir].count (-non_flag_dir)),
+ infos_[i - non_flag_dir].count (non_flag_dir));
+
+ // Ensure at least one beam is left, even for groups longer than 1/8
+ count = max (count, 1);