This question might belong in general, not quite sure, but... yeah, pretty much what the topic says. o_O Making a map for myself to play around on and all, and using it to test tactics and situations is fun, but the music is starting to get rather annoying, and having to change my side, save, and reload to get a diffrent sides music is just as annoying. So... thanks in advance!
The short answer is no. Each race's ODF specifies a certain WAV track to play over and over. You can edit .WAVs with different music but keep them to about 5 minutes length or problems will occur. Either way music can't be changed during play or mapedit.