alt Hacker NewsSimilar things:
* Perl MIDI::Score -- https://metacpan.org/pod/MIDI::Score
* Csound standard numeric scores -- https://csound.com/docs/manual/ScoreTop.html
* CsBeats (alternative score language for Csound) -- https://csound.com/docs/manual/CsBeats.html
Lilypond, too. Though it needs a full scheme interpreter to evaluate macros (provided by both the system and the user), it can emit midi files.