Henry Cowell (27 sept 1897 año – 22 mayo 1965 año)

Descripción:

"The Banshee" (1925)

Experimental composer and ultra-modernist (ultra-modernism was a movement in American music that focused on developing new musical resource)
Introduced piano tone clusters (literally, playing clusters of notes with your palm, fist, or forearm) in his work, The Tides of Manaunaun (1912)
Experimented with:
New playing techniques
New textures and procedures (e.g., give each voice a different subdivision of metre)
Wrote New Musical Approaches in 1930
Published a journal called New Music