Someone had given me a CD-R filled with dodgy music software, along with several thousand MIDI files from a boatload of various computer games. What on earth are you expected to do with a bunch of video game MIDI files? I used Andrew Culver’s ic program to select certain files by chance, then use chance to extract one instrument track from the file, assign it a new instrument patch, and insert it into a 15-minute composition.
The resulting trainwreck was played through whatever SoundBlaster card was in the computer, using the standard General MIDI set of instrument patches. In the middle of the piece I switched everything over to the percussion channel. The glitches you can hear are down to half a dozen sets of MIDI instructions all sending conflicting demands at once.