(b Bilbao, 28 Jan 1930). Spanish composer. Self-taught as a composer, he began working on behalf of new music in Madrid in the mid-1950s and attended the Darmstadt courses in 1958. Through his large, varied output and his teaching at the Madrid Conservatory he has influenced younger Spanish composers. Since the mid-1960s his works have used aleatory forms; later they embraced electronics.




