things you can do, as a studious musician, with module music formats (mod, xm, it...):
- open em in trackers and study how they work without having to transcribe them manually
- reuse their instruments in your own work
- when writing demos/games, allow the executable and music to interact precisely (e.g. visualizations, dynamic bgm)
- easy seamless looping
things you can do with rendered audio (mp3, wav, ogg...):
-
- chop them up for samples?
- transcribe if you're some kind of cool kid i guess