EDIT: Cool! Can you make a quick recording?
I wrote this while you were posting...
Yup. The good old YMF724 family is a great chip to have for those looking to game with OPL FM with late 90s PCI based sound cards.
Considering how everything today seems to be recorded on to FLACs, OGGs and MP3s: Wouldn't it be easier to record the music off your favorite FM card, get it as "canonical"
as you want it, and use that with your favorite Doom port? Personally I would find this very appealing cause it gets you the best of both worlds. I bet many people would download a music pack like this for the same nostalgic purposes as those who wish to use the OPL chips on their sound cards.