you'd need to have the relevant sound font loaded, and then construct a midi file that does the GS reset and then map midi instruments as noted then hope whatever game you wanted to play didnt do a GM/GS reset to mess up what you just did. probably use midiox or something to filter out the reset from the game.

As memory serves, the MT-32 soundbank/soundfont (shipped with the AWE range of cards) only contains a small number of additional samples for the MT-32 (that isn't part of the standard GM sample set) and, then also rearranges (maps) the rest of the standard GM samples to more or less match the MIDI map of the MT-32.

Based on what you've posted, it would seem you can access the CM-32L drum kit when you load the GS soundfont but, this will be useless from a gaming perspective since no games will try to access the CM-32L drum kit in that manner.

I haven't seen a CM-32L specific soundfont yet but that doesn't mean there isn't one out there.

I'm running Might & Magic 3 with MT-32 option for music under Win98. It works, but the walk sound effect plays a high note instead of the CM-32L's foot steps effect. In the AWE32 panel I have it loading the MT-32 sound bank.

So if I have a CM-32L sound bank, that would possibly work? I never looked into sound font creation, but this "sounds" interesting 😅