Reply 40 of 44, by Scali
That is why I asked for a recording of the game GODS where the music consists of the WAV and OPL combined so we can tweak the balance by ear even though the subject sound card has improper lowpass filter.
You might also want to try some of the Renaissance demos then, eg this: http://www.pouet.net/prod.php?which=2902
Or the separate player: http://www.pouet.net/prod.php?which=4168
They developed a tracker which used both FM and multiple digital channels (basically a sort of MOD player with software mixing).
It's also interesting to test whether clones have the same latency on OPL vs WAV. I know the demos don't work well in most emulators because the OPL and WAV aren't in sync. On a real SB it works flawlessly though.