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
It is called "Harry Potter Prologue"
Harry Potter and the Half-Blood Prince.
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;)
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.
Alexandre Desplat
Hedwig's Theme
The music written in the last four Harry Potter video games, were all composed by James Hannigan. "Hedwig's Theme" was composed by Jonh Williams.