Holy cow that MT-32 MIDI is crazy. The sound design is incredible! Thank you for sharing! It's nice to hear a snare on the MT-32 that isn't the stock PCM one. 😁

It's a crazy midi. I found the original here:
https://www.youtube.com/watch?v=cTraSI6LMaI

It's an RCP and CM6 (it's in the video description), which you can convert to MIDI with this tool:
https://shingo45endo.github.io/rcm2smf/

Interestingly enough, the converter has a setting relevant to the SysEx discussion:

Interestingly, I noticed that in mt32emu the scrolling text on the display keeps getting interrupted by the MIDI activity flashing the display back to the channels view and back and forth every time the text scroll is updated. But on a hardware MT-32 this doesn't happen.

That does happen on mine (text display constantly interrupted), which is MT-32 old. Your's is probably a "new"?

MusicallyInspired wrote on Today, 14:28:

Interestingly, I noticed that in mt32emu the scrolling text on the display keeps getting interrupted by the MIDI activity flashing the display back to the channels view and back and forth every time the text scroll is updated. But on a hardware MT-32 this doesn't happen.

What do you mean by "mt32emu" exactly? If you mean the mt32emu-qt.exe GUI app then the answer is the display behavior is ROM dependent.
At the very beginning of Synth.cpp you can find the ControlROMFeatureSet definitions. The relevant fields are "quirkDisplayCustomMessagePriority" and "oldMT32DisplayFeatures".
https://github.com/munt/munt/blob/master/mt32 … u/src/Synth.cpp