"Treehouse of Horror" is the third episode of "The Simpsons"' which number season, and is the first episode to have the music composed by Alf Clausen, an American film and television composer?
Alf Clausen Alf Heiberg Clausen (born March 28, 1941) is an American film and television composer. He is best known for his work scoring many episodes of "The Simpsons", of which he had been the sole composer between 1990 and 2017. Clausen has scored or orchestrated music for more than 30 films and television shows, including "Moonlighting", "The Naked Gun", "ALF" and "Ferris Bueller's Day Off".
I Won't Be Home for Christmas (The Simpsons) "I Won't Be Home for Christmas" is the ninth episode of the 26th season of the American animated sitcom "The Simpsons", and the 561st episode of the series. It originally aired on the Fox network in the United States on December 7, 2014. It is the thirteenth Christmas episode of the show.