Here are a few more I would add:
* An Even Scarier Solstice by the H.P. Lovecraft Historical Society, brand new and even better than its predecessor
* Nutcracker Suite for Guitar by Stevan Pasero, a gentle and mesmerizing album
* Yule by Linn Barnes and Allison Hampton, for Celtic harp, guitar, and lute goodness
* December by George Winston, a classic now available in its 20th anniversary version
And now, a quiz from the wonderful myrebelcat:
Which of the Professionals Are You?
At Christmas I no more desire a rose
Than wish a snow in May’s new-fangled mirth;
But like of each thing that in season grows.
- William Shakespeare, Love's Labors Lost