If you want to know more about hedwig's theme credits to Winkipedia: | "Hedwig's Theme" is an orchestral piece composed by John Williams. It serves as the main theme for the Harry Potter film series, based on the series of popular fantasy novels of the same name by author J. K. Rowling. The theme first appears in the opening credits of The Philosopher's Stone. The track is named for Harry Potter's pet owl, Hedwig. In later films the piece was expanded by William's for later films.
