So, this has been closed. I installed MUNT today on Linux (appimage), and I realized that I could not play the Willy Beamish MT-32 Soundtrack correctly. This is probably the same case as this ticket is: the syx-file is separate to the midi file, and therefore does not get loaded. So, this issue still is worth a feature request to be reopened in my opinion. Pretty please?
MUNT inconsistency
The mentioned file is intended to be played on a GM-compatible device, specifically it contains embedded SysEx commands recognised by Roland Sound Canvas. However, MT-32 is not a GM-compatible device. For it to sound half-reasonable, the GM compatibility mode must be enabled, e.g. by playing the MTGM.MID file beforehand within the same emulation context, the same way as would be done with a real device.
MUNT inconsistency
mt32emu-qt: add command-line option for opening one or more MIDI-IN port(s) at startup
Control instruments
mt32emu-qt: add command-line option for opening one or more MIDI-IN port(s) at startup
mt32emu-qt: add command-line option for opening one or more MIDI-IN port(s) at startup