DK Bananza is an amazing game, filled with exploring, banana hunting and punching the living hell out of everything that's near. It's got a pretty big soundtrack, with over a hundred songs, with sadly no offical release (yet).
There are some nice jazzy, quiet and meditative songs in here..the whole OST is pretty chill with most of the action saved for the Kong transformation- and boss songs. I like the unique sound of some songs: very subtle, electronic and filled with atmosphere.
You can find the soundtrack on Youtube.