Creating the World of Harry Potter Part 4 Sound and Music - 2010 was released on:
USA: 19 October 2010
It is called "Harry Potter Prologue"
Harry Potter and the Half-Blood Prince.
For Harry Potter and the Sorcerer's Stone, Harry Potter and the Chamber of Secrets, and Harry Potter and the Prisoner of Azkaban: John Williams For Harry Potter and the Goblet of FIre: Patrick Doyle For Harry Potter and the Order of the Pheonix and Harry Potter and the Half Blood Prince: Nicholas Hooper For Harry Potter and the Deathly Hallows, Part 1 and Harry Potter and the Deathly Hallows, Part 2: Alexandre Desplat
They made up the music by them selves
classical
No, the music for Harry Potter has been composed in recent years for the movies.
Alexandre Desplat composed the music for Harry Potter and the Deathly Hallows Parts 1 and 2
because she has glasses & went to Hogwarts for her 11th birthday.(creepy harry potter music in the backround) (And of course she has changed her name and gender to become Harry Potter;)
David Barron has: Played himself in "HBO First Look" in 1992. Played himself in "Made in Hollywood: Teen Edition" in 2006. Played himself in "In Too Deep: The Second Task" in 2006. Played himself in "Preparing for the Yule Ball" in 2006. Played himself in "Creating the World of Harry Potter, Part 4: Sound and Music" in 2010. Played himself in "Creating the World of Harry Potter, Part 3: Creatures" in 2010. Played himself in "Creating the World of Harry Potter, Part 5: Evolution" in 2011. Played Himself - Harry Potter Producer in "50 Greatest Harry Potter Moments" in 2011. Played himself in "Warner Bros. Studio Tour London: The Making of Harry Potter" in 2012.
The Magical Music of Weasley Sweaters - 2011 Your Home Payphone Harry Potter Parody 1-2 was released on: USA: 31 October 2012
itunes Type in harry potter in the search box. click buy song start injoying
I don't think any of the seven books mention a favorite music of Harry Potter. Note that since Harry Potter is a fictional character, there is really no way to ask him.