Jon Burlingame It’s a Thursday afternoon in December, and on the big screen at the Sony scoring stage, swords are flashing, arrows are flying and soldiers in ancient Chinese garb are spinning in midair.Composer Harry Gregson-Williams is conducting a 90-piece orchestra in his score for Disney’s “Mulan” (currently available on Disney Plus), the live-action remake of the 1998 animated classic about a girl who disguises herself as a man to take the place of her ailing father in battle.