(b Santiago de Chile, June 22, 1922; d Santiago, Feb 3, 1999). Chilean composer and writer. Introduced to music by his father, a cellist, he studied theory and the piano at the Catholic Conservatory from 1935 to 1939. After graduating in civil engineering from the University of Chile (1945), he pursued work in composition with Jorge Urrutia Blondel at the National Conservatory (1948–52). He made his first experiments in electronic music when he was planning music programmes for Chilean Radio (1953–6), and in 1956 created the Experimental Sound Workshop at the Catholic University of Santiago. He taught both at the Catholic University and on the arts faculty of the University of Chile.
Amenábar wrote for the voice, chamber groups, solo instruments, and ensembles, and he composed incidental music for the cinema and theatre. His electro-acoustic music carries special importance: such works as ...