(b Milan, 9 Sept 1930). Italian composer. He studied at the Milan Conservatory and at Darmstadt (1960-63). His aim has been to remove humanity from music, making it a mask to outline the lack of art in the present day. His means have included the ‘composing’ of performers actions and attitudes, the distortion of old music (Schoenberg for orchestra, 1967) and the conversion of such music into a factitious and grotesque mechanism.