The drumkit is an entirely different thing outside of the usual instrument range, so 81-104 says nothing at all about the drum banks.
So welp; flattered folks liked the spacetrack, though I was one of the wonkers who started with drums and got surprised when I realized the rules were later amended, so I probably fudged up the compo for everyone. D:
GM/GS/GM2 drum kits are actually stored on patches 1, 9, 17, 25, 26, 33, 41, 49 and 57 (which means you can send patch change messages to switch kits mid track, which is heaps fun). so it's not entirely different. but i get why it needs to be clarified next time :)