In C++, described by programmer/creator/violist/genius Gabe Taubman:
The first full run-through performance of In C++! It’s using any contrasty bits in my apartment as notes. You can’t see the musical staff lines that it’s using to figure out which contrasty bits count as which notes, but they’re there.
There are seven virtual players in this performance (plus one metronome player), comprising a celeste, marimba, banjo, timpani, harp, piano, xylophone, and taiko drum.
It’s using a modular rhythm assignment technique to construct rhythms, with a rhythm base of quarter, sixteenth, sixteenth, eighth, quarter, eighth. This yields possible time signatures of 7/8, 9/8, 19/16, 10/8, 11/8, 13/8, 14/8, 16/8, etc.
My favorite part is around 8 minutes in, but the whole thing is interesting to listen to.