John Cage

John Cage
(1912 - 1992)
American composer, philosopher, poet, music theorist
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A pioneer of indeterminacy in music, electroacoustic music, and non-standard use of musical instruments. Critics have lauded him as one of the most influential American composers of the 20th century.

(wiki)

Cage is perhaps best known for his 1952 composition 4′33″, which is performed in the absence of deliberate sound; musicians who present the work do nothing aside from being present for the duration specified by the title. The content of the composition is not four minutes and 33 seconds of silence, as is sometimes assumed, but rather the sounds of the environment heard by the audience during performance.

(wiki)

• In a Landscape (1948)
• John Cage Exhibition at Washington National Gallery

(Musica Nova)