Install it at the very end, after all music-adding mods.
Thanks man.
I've done something wrong along the way. Music in game, slowed now. I've read this happened to somebody and I'm trying to find it so I can see what caused it. Any ideas? I don't think it has anything to do with this mod, I haven't installed it, just unpacked it. It was fine before.
Don't worry fixed now bro!