(1925-1997) French composer and musicologist of Bulgarian birth. In 1946 he entered the Sofia Conservatory to study piano with Panka Pelischek and Andreï Stoïanov. He moved to Paris in 1949, where he studied at the Ecole Normale de Musique with Reine Gianoli (piano) and Georges Dandelot (harmony). Boucourechliev's first work to attract attention was Musique à trois (1957). During a 6-month spell in the USA (1963–1964), Boucourechliev became acquainted with the work of American avant-garde figures such as Robert Rauschenberg, Merce Cunningham, John Cage, and Earle Brown.