Hundreds gather to hear organ change chords decades into 639-year-long piece
Hundreds of people gathered inside an 11th-century convent in Halberstadt, Germany, on Monday to listen to an organ switch from one chord to another.
![Hundreds gather to hear organ change chords decades into 639-year-long piece](https://i.cbc.ca/1.7109040.1707411586!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/john-cage-organ-foundation.jpg)
![Rainer Neugebauer of the John Cage Organ Foundation adds a new pipe to the makeshift organ designed to perform a song over the course of 639 years. A man with a big gray beard fiddles with a wooden structure as a crowd watches.](https://i.cbc.ca/1.7109040.1707411586!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/john-cage-organ-foundation.jpg)
Hundreds of people gathered inside an 11th-century convent in Halberstadt, Germany, on Monday to listen to an organ switch from one chord to another.