Comment by CrazyStat

I'm surprised this targets TeX rather than lilypond, which AFAIK is the gold standard for free (as in beer and speech) music engraving.

I checked, and lilypond also offers features for Gregorian chant notation [1]. Has anyone used both and is able to compare?

[1] https://lilypond.org/doc/v2.25/Documentation/notation/typese...