Is it possible to extract the music from Chime?

I've been looking at some of the files with a hex editor. It appears that there is no single "soundtrack" to the game, but that the game stores the songs in many pieces and assembles them in real-time depending on what's going on in the game. The song Still Alive is in 42 parts itself, with all the data in one file (Portal_Backing.xwb), and the allocation table in another (Portal_Backing.xsb). I have no idea what format the actual song parts are stored in.

Sorry but it doesn't look like you'll be able to get the songs extracted.

After poking around in the folder, there appear to be no usable sound files.