(b Portogruaro, 1885; d Cerro di Laveno, 1947).
It. composer and painter. Theorist of futurism movement, for which he also comp. In L'arte dei rumori (1913), advocated use of variety of sounds and noises as materials for comp. and invented instrs. for which he developed graphic notation (1926). These were stored in Paris and destroyed during Second World War.