4′33″

You performed an interpretation — not a copy of a performance, and not a recording. Your intervals lasted 20, 50 and 35 seconds: one minute forty-five in all. That compression is this interpretation's, not Cage's. It keeps the felt relation — a performer opens a span, sustains attention, closes it, three separate times — and gives up the historical length.

Every speck in your trace is one moment the page registered while you held: the room around you where you allowed it, the field it generated where you did not, the small unsteadiness of a finger that cannot hold perfectly still. Left to right is time. Nothing was played, and the field is not empty.

Three movements. In the Peters edition of the score each carries a single instruction: TACET — the classical direction telling a player to remain silent for that movement. No pitches are prescribed. What is prescribed is a bounded duration and a performer to bound it.

The note printed with the score states that at Woodstock, New York, on 29 August 1952 the title was 4′33″ and the three parts were 33″, 2′40″ and 1′20″ — and that the work may be performed by any instrumentalist or combination of instrumentalists, and may last any length of time. The familiar description, four and a half minutes of silence, is the one thing the piece is not. Cage did not think silence was available to us; a performance frames whatever sounds occur.

29 August 1952, Maverick Concert Hall, Woodstock, New York. David Tudor at the piano, within a programme of new piano music. Tudor is reported to have marked the movements by lowering and raising the keyboard lid, timing them with a stopwatch.

Cage's later account of that evening — wind outside during the first part, rain on the roof in the second, the audience making its own sounds in the third — is his recollection, retold many times over the following decades. Read it as testimony rather than record. What is documented is the frame: a date, a hall, a performer, three bounded parts.

No recording can preserve this work, because the sounds were never the work. A tape of Woodstock in 1952 would hold one weather, one audience, one roof. The piece survives the way an instruction survives: someone reads it, marks a beginning, holds attention, marks an end — and listening happens again, in a room no one else will ever hear.

That is what you did. In a browser. With one finger.

When you began, the page asked for your microphone. If you allowed it, it read the live level in your browser only — nothing was recorded, stored, or sent anywhere. If permission was refused or unavailable, the marks came from a field simulated in this page, not from your room. The page never claimed otherwise.

• John Cage Trust — works list and chronology
• Henmar Press / C. F. Peters — publisher of the score and its performance note
• The Museum of Modern Art, New York — 1953 manuscript of 4′33″ in proportional notation, dedicated to Irwin Kremen
• John Cage, Silence: Lectures and Writings (Wesleyan University Press, 1961)
• David Tudor papers, Getty Research Institute — programmes and correspondence

Where a detail rests on recollection rather than document — the keyboard lid, the rain, the sounds the audience made — this page says so instead of dramatising it. Durations used in this Station are interpretive and are stated as such above.