Imaginary Landscape No. 4

John Cage

For twelve radios (twenty-four players and conductor)

Internet Performances Conceived and Enabled by Robert Rabinowitz

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The Imaginary Landscape Series

Between 1939 and 1952, John Cage composed five works titled "Imaginary Landscape," exploring electronic and technological media as musical instruments. No. 4 (1951) is unique in using radios as the primary sound source.

The Composition Process Diagram
Figure 1: The I Ching mapping process used by Cage to determine all musical parameters. (Credit: Andrea Valle & Amedeo Casella, CC-BY 3.0)

The Premiere Performance

Premiered in New York on May 10, 1951, the performance highlighted a radical idea: the radio itself as a musical instrument. The extremely low volume—intentional to Cage's score—was considered by many to be a "flaw." Some audience members found the quiet, nearly inaudible nature of the performance unengaging.

However, when a brief fragment of a Mozart violin concerto broke through the static, the crowd applauded wildly. Other surprising sounds included snippets of baseball news and various advertisements—each fleeting moment adding to the piece's unpredictable appeal.

Cage's Methodology

Cage used the I Ching (Book of Changes) to determine musical parameters through chance operations. He would consult the ancient Chinese text by tossing coins to generate hexagrams, which corresponded to specific values in charts he created for frequency, duration, dynamics, and timbre. This eliminated personal taste and ego from composition, allowing sounds to "be themselves."

Notation Symbols
Figure 3: How Cage approximated AM frequencies (55-160) onto a standard 5-line staff. (Credit: Andrea Valle & Amedeo Casella, CC-BY 3.0)

Live internet radio streams are validated before each performance.

Rhythmic structure: 2-1-3 | Duration: 4 minutes

For more information, visit the John Cage Trust.

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Please Stand By
Legend: A top-down view of the stage. The 12 Radios form an arch around the central Conductor.
  • Red Ripples: Player 1 is actively turning the dial to find a new frequency.
  • Wave Height: Maps to Volume (Loud = Tall, Quiet = Flat).
  • Wave Color: Maps to Tone (Cyan = Warm/Bass; Purple = Bright/Treble).
  • Center Conductor: Master oscilloscope tracks ensemble chaos. Baton points to loudest performer.