Hooper incorporated "Hedwig's Theme", the series' theme originally written by John Williams for the first film and heard in all subsequent entries, into the score. In March and April 2007, Hooper, conductor Alastair King and the Chamber Orchestra of London recorded nearly two hours of music at Abbey Road Studios in London with orchestrations provided by King, Geoff Alexander, Julian Kershaw, Bradley Miles and Simon Whiteside.
The composer incorporated "Hedwig's Theme", a recurring motif from the series originally written by John Williams for the first film, into the score. In March and April 2007, Hooper, along with conductor Alastair King and the Chamber Orchestra of London, recorded an extensive amount of music at Abbey Road Studios in London, utilizing arrangements created by King, Geoff Alexander, Julian Kershaw, Bradley Miles, and Simon Whiteside.