[PERSON]
Anneli Borgmann
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Halberstadt 639-year John Cage organ
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Latest: Halberstadt organ project reaches 17th sound change
The John Cage composition ORGAN²/ASLSP, begun on 5 September 2001 in the medieval Burchardi Church in Halberstadt, Germany, is designed to run for 639 years, ending in September 2640. After 25 years of continuous, unatte