Brian Whitman is an MIT professor, and maker of Eigenradio, which "plays only the most important frequencies, only the beats with the highest entropy." Brian has released a happy holiday album automatically derived from the principal components of "all Christmas music." Description, from the site: "This season, as a present to friends worldwide, our system listened to as much Christmas music as it could handle. When it was done it synthesized these sixteen new timeless classics."
It's kind if a haunting, Philip Glass-like series of... it's not even melodies, really, but sounds a lot like the music they composed for 2001: A Space Oddessy. I bet it's great on certain types of recreational pharmecuticals.