-/**
- make balls and rests
- */
-
-/*
- * TODO: junk bool in_ligature (and all the messy code around it).
- * This can be done by also junking LigatureHead in
- * scm/grob-description.scm. Instead, NoteHead should be used
- * throughout typesetting of ligatures; ligature-(start/stop)-events
- * should simply modify NoteHead properties values of
- * molecule-callback ligature-primitive-callback. --jr
- */