I was using a Yamaha YMF718 along with a Roland MT-32 and I was unable to get SoftMPU to load.
Is there no support for this soundcard?
Also a CT1750 alongside a Roland MT-32 was plagued with constant issues with and without SoftMPU.
(486DX2-66)
CT1750+Roland MT32+SoftMPU
Wing Commander 1 (working)
Wing Commander 2 (working but crashes with speech in the intro)
Ultima Underworld (not working) starts sending midi message then fails to load.
Ultima Underworld 2 (not working) starts sending midi messages then fails to load
Monkey Island (working)
Ultima 6 ( working)
CT2940+Roland MT32+SoftMPU
Wing Commander 1 (working)
Wing Commander 2 (working but crashes with speech in the intro)
Ultima Underworld (working)
Ultima Underworld 2(working)
Monkey Island(working)
Ultima 6 (working)
There is already a patch for Ultima 6 to support MT32 running on a sound blaster midi interface. I had that installed when I tested SoftMPU.