Eh I'm not sure where this'd go so I'll put it in general. >.>
Thought I'd drop in with the news for those who're interested. The released tunes can be found here:
http://grantkirkhope.bandcamp.com/album/bk-betas
Some of these we knew about and some were partially in the final game, but many weren't. The most significant thing I think is the original Mumbo's Mountain theme that people have wondered about for a long time now. (He already released beta Freezeey Peak and Treasure Trove Cove a long time ago.) In the final game, the original MM tune can be found in Ticker's termitaria, in a variation. Grant thought it suited the place so he'd left it in. There's also what seems to be an early version of The Final Battle and some other stuff.
This is pretty cool. If there were more levels in the original game, then this beta music could have been used. Grant Kirkhope didn't have to create much music for DK, instead he used some of the beta music fromB-K and B-T! :D