Duration 639 facts

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Organ²/ASLSP is a musical piece by John Cage and the subject of one of the longest-lasting musical performances. The performance of the organ version at St. Burchardi church in Halberstadt, Germany, began in 2001 and is scheduled to have a duration of 639 years, ending in 2640.

A very long musical performance by John Cage, the organ version began in 2001 and is scheduled to have a duration of 639 years, ending in 2640.

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