One of his pieces aims to emphasize the ambient sounds surrounding the listener by having the performer be completely silent throughout.
This composer used rhythmic units of fifteen bars in a piece for either solo piano or solo harp, titled In a Landscape. A piano collection by this composer intersperses four freeform interludes between sixteen sonatas, mostly in binary form. In the 1950s, he and Morton Feldman led the New York School of composers. David Tudor premiered an indeterminate piece by this composer written by consulting the (*) I Ching. Taking from his teacher Henry Cowell, this composer placed screws, rubber bands, and other stray objects in between the strings of a piano in order to "prepare" it. One of his pieces aims to emphasize the ambient sounds surrounding the listener by having the performer be completely silent throughout. For 10 points, name this composer of 4'33" ["four minutes, thirty-three seconds"].
This composer used rhythmic units of fifteen bars in a piece for either solo piano or solo harp, titled In a Landscape.
John Cage 