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To heroically understate the situation, I am not personally a fan of Christmas music.  

But it's my job to help you enjoy the music you enjoy, not the music I enjoy. If you are one of the many, many people who enjoy Christmas music, this is your time of year, and to help you enjoy your time of year in the specific manner you enjoy most, the genre system I work on at Spotify actually has several subvariations of Christmas music:  

Every Noise at Once - xmas genres  

But according to our data, this is still just the surface of the seasonal alternate-reality. With a sufficiently jolly bias for inclusion and a merry tolerance of error we can find at least one maybe-genre-related maybe-xmas song for more than 1200 of our 1300+ genres. And, in fact, we can not only attempt to make xmas playlists for all genres, but we can then even rank the genres by how xmas-related they are, which is interesting information for both people who want to find xmas music and people who want to avoid it.  

Every Noise at Once - all genres sorted by xmasness  

But this sorting and filtering is all stuff I do normally, for my own purposes. If there is to be a non-denominational Xmas cleanly separable from the religious Christmas, it should probably revolve around the spirits of generosity and giving, which call for gestures that you don't merely do for yourself.  

And so, in what I hope is this spirit, I have also made you this gift:  


This is an algorithmically-generated xmas-specific manipulation of my genre map. It is the ultimate ornament, I think, a symbol-mosaic composited out of unsilent nights. I didn't draw the tree, I manipulated math so that the tree would self-organize that way. (Drawing it would have been faster.) Math doesn't believe or disbelieve, but it can multiply anybody's joy.
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