I notice that on the all-Christmas music stations, you're never to far away from hearing one of the Rock-based Christmas hits, such as "Rockin' Around The Christmas Tree", "Jingle Bell Rock", John Mellencamps inspired take on "I Saw Mommy Kissing Santa Claus", "Happy Christmas (War Is Over) by ex-Beatle John Lennon and "Wonderful Christmastime" by ex-Beatle Paul McCartney. I'm thinking that many/some operators put different types of Christmas songs in different categories/folders so they have better control over content and rotation. What are the different ways that Christmas music is programmed?