Harry Potter and the Prisoner of Azkaban (Original Motion Picture Soundtrack) is the film score for the 2004 film of the same name, the third and final score in the series to be composed and conducted by John Williams. The soundtrack was performed at Abbey Road Studios in London with session musicians, with the London Voices and the London Oratory School Schola providing vocal performances. The score was orchestrated by Conrad Pope and Eddie Karam. The soundtrack is a significant departure from the previous two, since the director, Alfonso Cuarón, wanted the music to take a different approach. It introduced three major themes: "Window to the Past", "Double Trouble", and "Buckbeak's Flight". Other repeating new motifs were composed for the Time-Turner, Peter Pettigrew, and Sirius Black's hunt for Harry. It was released on 25 May 2004 and charted at No. 68 on the Billboard 200 and also charted at No. 3 on the Top Soundtracks Chart.[1]