[franek]

The title is indeed ambiguous. It could just as well refer to sound-coding systems/languages like Sonic Pi, or to what you imagined. (Which would be an oddly specific kind of music, but cool! The operation of a compiler turned into music, somehow?)

That said, I am not disappointed. But then I am also the one who posted this link in the first place. I started using Lilypond last year for transcribing the melody voices from complex sheet music and automatically transposing them into different keys when needed (which is immensely useful). Just recently I discovered that it can also generate MIDI output, so in addition to having a convenient tool to get beautiful sheet music in whatever key I need, I can now easily have my computer play the melodies and memorise them by listening (which for me, on my current instrument, is much easier than playing from notes directly).