Hajdu studied at the Franz Liszt Academy of Music in Budapest with Endre Szervánszky and Ferenc Szabó (composition), Erno Szégedi (piano), and Zoltán Kodály (ethnomusicology). As a Kodály disciple, he was involved for two years in research about Gypsy musical culture and published several articles on this subject.[1]
Hajdu composed many pedagogical works, particularly for piano and theory through a creative approach (involving the player to the process of composing) e.g. Milky Way, Art of Piano-playing, Book of Challenges, Concerto for 10 young pianists. All this is connected with the practice of creative teaching in the Israel Arts & Science Academy in Jerusalem, an experimental school for a new approach to music teaching. He also studied Jewish Klezmer and Hassidic repertories and published several articles on this subject. He was deeply involved in Jewish topics, not only on the usual folkloristic or liturgical levels, but also confronted more abstract subjects of Jewish thought (Oral Law, philosophical books of the Bible) as well as Jewish History. In 2005 he received the title of Doctor Honoris Causa of Jerusalem Hebrew University.
Kennedy, Michael (2006). The Oxford Dictionary of Music, second edition. Oxford and New York: Oxford University Press. ISBN0-19-861459-4
Schleifer, Eliyahu (2001). "Hajdu, André". The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell. London: Macmillan Publishers.
