Unable to play video. Fans of the Star Wars universe have probably heard more versions of the "Cantina Theme" than they probably know what to do with. Twitter user d4niphantom recently discovered that doing her math homework - specifically writing out "x+4" with her pencil - sounded just too much like A New Hope's Cantina Theme. She then discovered what else the equation would need to "play" the rest of the song, when written with a pencil.