The Key to Understanding John Cage's Silent Piece at MoMA — artnews.com

John Cage is most famous for a composition that claims to be music but acts like an artwork—a conceptual piece, in function and in form. The Museum of Modern Art in New York now owns the score, a recent gift of Henry R. Kravis. 4’33″ (In Proportional Notation) consists of three pieces of 11-by-16-inch paper that Cage folded in half, booklike. Then he drew a single (sometimes a double) vertical ink line descending down successive pages.

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