How to fix custom song glitches on emlators.

I don't see how they could be, you mean fill up wave 0x09 - 0x1F, right? With what, more waveform generated instruments? Pretty sure nobody knows how to go about doing that. I'm guessing it's programmed so the real instruments go on 0x20 - 0x2B at most, if someone could figure out how to broaden that to allow to go from 0x09 - 0x1F so they don't have to be called in the 32 byte instrument data, then that'd be pretty cool, but I mean there's probably a good reason why the real instruments that require blocks of space are needed to be called via that 32 byte data.