I've been playing around with the cool multi-format OPLx music player, RdosPlay. This thing can play a ton of stuff, including stereo OPL3 modules and ones intended for the SID & YM/AY soundchips(!), although the emulation of those over OPL isn't perfect. Unfortunately Rdos/Dimension lost the source code in a disk crash so v0.21b is the last one - it's a bit buggy, but does the job.

It used to be distributed with a whole library of example modules in a neat little package you could just grab. Looking around, it seems like that version didn't survive, even on the Wayback machine - I could only find a "bare" download of just the player from the usual places (Modland, VGMPF, etc.) Fortunately, I still had a copy, so I've uploaded it here for you guys to enjoy. As far as I can tell, this is "pristine" as you would have downloaded it in 1997. I had to remake the .zip myself, but the files are all there and the dates are untouched.

Honestly, I'd bet most of the included modules are available elsewhere (Modland) so I'm not sure how important for "preservation" this is, but I imagine it's nice to be able to get the archive with everything included again. There are a couple modules that weren't in the "full" archive for 0.21a (I checked), and some that are obviously ripped from packed data formats, probably by Rdos himself. Anyway, enjoy!

https://archive.org/details/rply-021-b

Tip: in DOSBox you have to set the cycles below ~3400, or it will fail to detect the soundcard on launch. After that you can crank them back up. It seems to suffer no such problem on real hardware and even works with my PCI CMI8738 on an 800MHz Transmeta Crusoe.

(Obvious disclaimer: RdosPlay is and always was freeware.)