Heaven help us, the Eigenradio people have made a Christmas Album of free MP3s.
For anyone not familiar with Eigenradio, here's their description: "Eigenradio makes its optimal music by analyzing in real time dozens of radio stations at once. When our bank of computers has heard enough music, it will go to work on making more just like it. Since we listen to so much music all the time, Eigenradio is always on and always live. What you hear on Eigenradio is the best of the New Music, distilled and de-correlated. One song on Eigenradio is worth at least twenty songs on old radio."