Looking for a MIDI solution

[SMcNeill]

Can you share the gameover.mid file as well, so we can test and troubleshoot?

Found the problem.
You have to delete the two files soundfont.sf2 and soundfont.o from the subfolder qb64pe\internal\temp\

It doesn't do this automatically when the program starts
As soon as you use a smaller sf2 file, the soundfont.sf2 and soundfont.o file will remain.

Say always the larger file remains there. Since only the initial buffer is replaced in these files.

Totally stupid. You really have to delete it manually every time you want to use a different soundfont.

Issue pointed out here should now be fixed in the repo.