Btw, I'd recommend playing the mp3, unless you have a real sb16/awe32 on a system running win9x and you can run adlib tracker 2, or something along that line. Last time I checked, mame's code had bugs when emulating 'advanced' stuff (4 op mode, square wave modulator), and afaik most emulations use that. Probably doesn't work in Adplug either.
I use Adlib Tracker 2 http://stano.korex.sk/screenshots.php since it has the most features sound wise (full opl3, with up to 18 channels, 4 op mode, and also macros). Since 4 op mode is rare, you'll have to make your own patches, but it's worth it, since they sound quite better.