Hey, last year, I just felt the NEED and started playing it before Halloween! Most of my Christmas music is liturgical stuff and Medieval and Renaissance stuff. I love John Rutter's Cambridge Singers, Boston Camerata, Chant, you name it. I have some folky new agey stuff, too; Loreena McKinnett, George Winston, Windham Hill , the Chieftans, and a lovely CD by Carolyn Peyton doing Celtic carols.
But some of my most favorite CDs are by a group called Anonymous 4. It is 4 women who sing a cappella and do music from the Middle Ages, Hungarian carols, etc. It is like listening to the angels.
So some of it is just ethereal music, not just Christmasy sounding music. Then of course I have some stuff like "You Sleigh Me", alternative groups doing Christmas music, and Trisha Yearwood doing a torchy "Santa Claus is Back in Town"! My choices go from the sublime to the ridiculous!
I met her last year and bought a number of her CD's.