Unfortunately it still doesn't work for 0.75.2. And also noticed problems in branch po/mt-32-1. I wrote in 257 about them there.
My patch.
dosbox-staging (fork of dosbox) integration (SDL2)
My patch.
dosbox-staging (fork of dosbox) integration (SDL2)
I added mt32emu to openSUSE and got your patch accepted in dosbox (not upstream, only openSUSE). https://build.opensuse.org/package/show/multimedia:libs/mt32emu https://build.opensuse.org/package/show/Emulators/dosbox MT-32 in dosbox on openSUSE (Tembleweed and Leap 15.3) is now supported out of the box. I also wrote a detailed instruction about setting midi (MT-32 and GM) in dosbox, I think it will be useful to you. https://build.opensuse.org/package/view_file/Emulators/dosbox/CONFIG-midi-mt32-gm?expand=1...
I added mt32emu to openSUSE and got your patch accepted in dosbox (not upstream, only openSUSE). https://build.opensuse.org/package/show/Emulators/dosbox MT-32 in dosbox on openSUSE (Tembleweed and Leap 15.3) is now supported out of the box. I also wrote a detailed instruction about setting midi (MT-32 and GM) in dosbox, I think it will be useful to you. https://build.opensuse.org/package/view_file/Emulators/dosbox/CONFIG-midi-mt32-gm?expand=1 It would also be great if this or a similar manual, modified...
Many thanks to you! The problem is solved, I hope this will help someone, and even more I hope that people will not have to deal with this and everything will work out of the box. :-)