Luigi Russolo

1913 manifesto: L'Arte dei Rumori (The Art of Noises) stated "that the industrial revolution had given modern men a greater capacity to appreciate more complex sounds."

"Russolo found traditional melodic music confining and envisioned noise music as its future replacement."

The Art of Noises classified "noise-sound" into six groups:

1. Roars, Thunderings, Explosions, Hissing roars, Bangs, Booms
2. Whistling, Hissing, Puffing
3. Whispers, Murmurs, Mumbling, Muttering, Gurgling
4. Screeching, Creaking, Rustling, Buzzing,[5] Crackling, Scraping [5]
5. Noises obtained by beating on metals, woods, skins, stones, pottery, etc.
6. Voices of animals and people, Shouts, Screams, Shrieks, Wails, Hoots, Howls, Death rattles, Sobs