All music is composed by John WilliamsThis is the final movie in the Harry Potter series to use Hedwig's Theme in its original, gradually building form during the opening (until the credits of Deathly Hallows Part 2).

Loads of flourishing strings overlap the four-note motif that the brass repeats rhythmically, and lastly, the little bursts of woodwind throughout enforce the sensation of movement.

The piece mainly consists of discordant wavering strings at the beginning, but as it progresses, Williams weaves punctuating piccolos and long notes of brass that gradually build up the menacing tension.

The music appears to die off again instantly; however, the familiar sound of lush strings and celesta (so prominent in Williams' earlier scores for these films) subdue the tension afore.

Archie Watt of MovieCues highly praised the score, calling it "One of the best albums of 2004, and well worth a listen by any film music or John Williams fan.