redid my midi producer script, apparently the GM reset sysex was giving problems - reset instruments when playing midis through SC-8850, so i removed that sysex
fixed an issue with some of my midis where the end-of-track isn't immediately after the last event, now they can loop properly if you put it in a wad or something
uploaded a new midi of "Boomin' Back Katakis", it uses the tricks described in my midi part 2 post but doesn't use the fancier GS features (so I can put it in the midi files page)