André Boucourechliev was a French-Bulgarian pianist, musicologist, and composer known for his aleatory works. He was also active as an educator and as a writer of scholarly articles and music criticism. He was born in 1925 in Sofia, Bulgaria to a music-loving family. His musical talents were realized at a very young age, and he took daily piano lessons from his aunt, Dora Boucourechliev. His first formal training began in 1946 at the Sofia Conservatory, where he studied piano with Andrei Stoianov and Panka Pelischek. Two years later, he won the National Competition for Music I...