Originally Posted by Teeth
If the Special Edition is built on top of the original game, then maybe it would be possible to disable the new audio system when in classic mode and just re-enable the original midi soundtrack? It might not play properly, but tools like VDMSound could be of use.
VDMSound is for DOS games and won't help here at all. What you need is MIDI capabilities in the engine, which probably is very easy to port to Windows for them. But they apparently think that no one wants to use a real MT-32 anymore. I've heard that there is no native MIDI support for their other Steam releases either, which is an unnecessary limitation, imho.