[username223]

I'm happy to be reminded that Lilypond is still around. I used it to produce scores (and MIDIs) 15+ years ago, because it offered the same experience as LaTeX -- beautiful results if you're willing to code and, occasionally, battle eldritch horrors beneath its surface. Like (La)TeX and Emacs, I hope it becomes one of those rare pieces of software that lasts longer than a human lifetime. Few things we build these days, not just software, endure so long.