https://bugs.winehq.org/show_bug.cgi?id=46170
--- Comment #12 from Nikos Chantziaras realnc@gmail.com --- After further testing (sorry that I'm a bit slow to do this, I didn't have much time on my hands), I'm inclined to say that the issue is fixed, and the remaining strangeness is due to ScummVM having a bug in its MIDI output.
I tried the same games out in DOSBox and PCem, and there's no issues whatsoever. ScummVM on the other hand not only results in wrong instruments, but also other issues like sounds being cut off prematurely and instruments playing on the wrong channels (9-16 instead of 3-10.)
So I think we can close this as fixed?