SymbOS
SymAmp 4.1 release - on the MSX 
http://grwp24hodrefzvjjuccrkw3mjq4tzhaaq32amf33dzpmuxe7ilepcmad.onion/watch?v=zacLrii9XCs

"The last SymAmp video for this quarter :D SymAmp on the MSX with the MoonSound/OPL4 sound card, playing SA2 files.
You can download it here:
www.symbos.org/appinfo.htm?00005
symbos.org/download/media/sa2.zip"

https://youtube.com/watch?v=zacLrii9XCs