For all its apparent simplicity John Cage's seminal 4'33'' ('Four, Thirty-Three') continues to stimulate, provoke, enrage and delight audiences nearly 70 years after it was composed.

The premiere of the three-movement 4'33'' was given by David Tudor on August 29, 1952, at Woodstock, New York as part of a recital of contemporary piano music. The audience saw him sit at the piano and, to mark the beginning of the piece, close the keyboard lid. Some time later he opened it briefly, to mark the end of the first movement. This process was repeated for the second and third movements. The piece had passed without a note being played--in fact without Tudor (or anyone else) having made any deliberate sound as part of the piece. Tudor timed the three movements with a stopwatch while turning the pages of the score.

"They missed the point. There's no such thing as silence. What they thought was silence, because they didn't know how to listen, was full of accidental sounds. You could hear the wind stirring outside during the first movement. During the second, raindrops began patterning the roof, and during the third the people themselves made all kinds of interesting sounds as they talked or walked out." John Cage speaking about the premiere of 4'33"

Several versions of the score for 4'33" exist, including:

The Kremen manuscript (1953): graphic, space-time notation, dedicated to Irwin Kremen The movements of the piece are rendered as space between long vertical lines; a tempo indication is provided (60), and at the end of each movement the time is indicated in minutes and seconds EP No. 6777a.

The so-called First Tacet Edition: a typewritten score, lists the three movements using Roman numbers, with the word "TACET" underneath each. A note by Cage describes the first performance and mentions that "the work may be performed by (any) instrumentalist or combination of instrumentalists and last any length of time."

This present edition is the so-called Second Tacet Edition: this is the same as the First Tacet Edition, except that it is printed in Cage's calligraphy, and the explanatory note mentions the Kremen manuscrip