pmtex – Preprocessor for MusicTeX
Free license not otherwise listed, or more than one free license applies
typesetting music and related stuff
Maybe you are interested in the following packages as well.
- snote: Shaped notes for MusicTeX
- pmx: Preprocessor for MusiXTeX
- abc2mtex: Notate tunes stored in ABC notation
- musixtnt: A MusiXTeX extension library that enables transformations of the effect of notes commands