Allright then, first assignment is in the basket! =)
I found out that all of the music used in the game 'Cube Colussus' has been released as an "Original Soundtrack" by the game developer 'Lucidrine Games'. Below is a version of the tracklist on this soundtrack:

This pack includes all of the background music from the game 'Cube Colussus', arranged in their appearing order, from the 'Ingame Version' to a bonus '8-bit Version' (with GXSCC) making it 8 pieces in total!
You can download this pack on the website of the creators/developers of the game and its music,
simply click Fandry's Personal Development Blog @ Lucidrine Atelier.
Here you will find links to download the 'Original Soundtrack' with 'Mediafire', 'Megaupload' and 'Rapidshare'!
IMPORTANT!! Read this Disclaimer and obey it!
You can download, listen, and share the music freely. But please do NOT sell it/take a profit from it. Also, if you want to use one of these musics for your own (non-commercial only) project, please give me credits and (if you don’t mind) link back. I spend hours of my time made for each these musics, so please appreciate it. Thank you.
Hope this was what you were looking for! ;)