An expert fills you in the history of Christmas music, from its origins to its transformation into a commercialized genre in the 20th century.

You know Dasher and Dancer and Pran … ugh, you know the rest of it. Yes, Virginia, while there is a Santa Claus, the music of the Christmas season can make you shift from having the feels to the flinches in the jingle of a bell. But even bad songs are tough to whittle into a list and culling some of the worst offenders is highly subjective. While many are quick to vilify “Baby, It’s Cold Outside,” it’s a challenging song to dissect. No doubt there are many ick factors inherent in the Oscar-winning duet made famous by Dean Martin and Marilyn Maxwell and covered by seemingly everyone with vocal cords. But when put into context that songwriter Frank Loesser penned it to sing with his wife as a way to nudge guests to leave their housewarming party, it feels as if the cancellation police need to take a beat. There are plenty of other lumps of audible coal to avoid. Here are the 10 worst Christmas songs, according to USA Today: Here are the worst: 1. Alvin and the Chipmunks, ‘The Chipmunk Song (Christmas Don’t Be Late)’…