The soundtrack consists entirely of tracks assembled from various artists on the internet (artists and tracks are listed in the credits). I've tracked all the tracks used down and assembled them into one archive for convenience, though.
Two notes. First, the tracks are in a variety of different formats; some are .ogg, some are .mp3, and some are .mid. Those are the formats that the tracks were available from the artist in, and I didn't want to mess with converting. Second, the final boss theme--"Ruins"--is the 48kbps version, as that's the only version I could find available for free download; there is a higher quality available for download, but the artist is charging for the high quality version, and I think that the 48kbps version was probably the one used in the game anyway, though.
Anyway, the link:
Diadra Empty Soundtrack (
http://www.megaupload.com/?d=KL893KQG)