"I checked through the MnP archives and didn't see this (rather quickly, so, sorry if I missed it!) The song I'd like to suggest is Freezeezy Peak from Banjo-Kazooie. It's one of the first video game themes I think of when I think of winter or Christmas. It's hard not to smile and be happy when you hear it!"
This is my favorite level in the game, and I really wanted to take a trip back to the era of Banjo-Kazooie! Thanks for listening, and I hope you enjoy it!