Thank you for your generosity! If it is okay, I'm in for Q.U.B.E.
I am Jewish, so my knowledge of Christmas songs is very sparse...
Here are a couple of pieces that are generally affiliated with the Christmas season from one of my favorite composers: Claude Debussy
https://www.youtube.com/watch?v=vNgIqtNn8Gw The three pieces, La Neige Danse, La Petit Berger, and Golliwog's Cakewalk, were part of Debussy's Children's Corner, which was a six piece suite that was dedicated to his daughter, Claude-Emma, and is meant to evoke sensations of childhood.