NOTE: On iOS 18, the 4'33" app will no longer work. It is working on iOS version up to 18. We are deciding next steps, but since it is working well in the previous operating systems, we want to keep it available as long as we can.

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4'33" — John Cage’s most famous and disruptive composition—can now be performed by you!

Cage’s work teaches us that there’s no such thing as “silence’” (and that there’s joy to be found in paying close attention to the sounds around). It’s now available in this official release from the John Cage Trust and Cage’s longtime publisher, C.F. Peters.

With the 4’33” app, you can capture a three-movement “performance” of the ambient sounds in your environment, and then upload and share your performance with the world. You’re also able to listen to the performances of others, and to explore a worldwide map of ever-growing performance locations.

As a bonus, the 4'33" app features a recording of the ambient sounds at play in John Cage’s last New York apartment, which he found a source of constant surprise, inspiration, and delight.

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Celebrate John Cage's 100th birthday by playing the CagePiano app on your iOS or Android mobile device.

One of the many ingenious innovations of American composer/writer/artist John Cage was his creation of the "prepared piano", in which he placed objects beneath and between the strings of a grand piano to create an entirely
new instrument.

The sounds of John Cage's Prepared Piano are now available for you to play on your portable device with this innovative app. Play meticulously sampled sounds of a piano prepared with the actual materials used by John Cage in the preparations for his “Sonatas and Interludes” (1946–48) as sampled under the supervision of the John Cage Trust.

—The $.99 iPad version features all 36 prepared notes, playable at once, plus the ability to save your performances locally, making dramatically unique ring tones possible.

—Both paid and free versions allow you to your record your performance and share it via Facebook, Twitter and email.

—The free iPhone version offers 9 sampled notes on screen at a time, while a random shuffle button makes available other prepared notes.

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