![Piece of music lasting for 639 years has first chord change since 2013 | The Independent | The Independent Piece of music lasting for 639 years has first chord change since 2013 | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2020/09/06/11/organ-john-cage-germany.jpg?quality=75&width=982&height=726&auto=webp)
Piece of music lasting for 639 years has first chord change since 2013 | The Independent | The Independent
![05 September 2020, Saxony-Anhalt, Halberstadt: Rainer O. Neugebauer, Chairman of the Board of Trustees of the John Cage Organ Foundation Halberstadt, speaks to the guests in the Burchardi Church before the sound 05 September 2020, Saxony-Anhalt, Halberstadt: Rainer O. Neugebauer, Chairman of the Board of Trustees of the John Cage Organ Foundation Halberstadt, speaks to the guests in the Burchardi Church before the sound](https://c8.alamy.com/comp/2CFG6Y1/05-september-2020-saxony-anhalt-halberstadt-rainer-o-neugebauer-chairman-of-the-board-of-trustees-of-the-john-cage-organ-foundation-halberstadt-speaks-to-the-guests-in-the-burchardi-church-before-the-sound-change-of-john-cages-piece-of-music-organ2aslsp-on-the-right-in-the-picture-is-the-organ-of-the-john-cage-organ-foundation-halberstadt-inside-the-burchardi-church-the-organ-has-been-playing-the-music-piece-organ2aslsp-by-john-cage-without-interruption-since-2001-it-is-said-to-last-639-years-on-saturday-september-5-2020-the-14th-sound-change-of-the-john-cage-organ-art-proj-2CFG6Y1.jpg)
05 September 2020, Saxony-Anhalt, Halberstadt: Rainer O. Neugebauer, Chairman of the Board of Trustees of the John Cage Organ Foundation Halberstadt, speaks to the guests in the Burchardi Church before the sound
![The John Cage Organ-art project is pictured at Saint Burchardi church in Halberstadt, Germany, 24 September 2013. A piece of the avantgarde composer and concept artist John Cage is presented on an The John Cage Organ-art project is pictured at Saint Burchardi church in Halberstadt, Germany, 24 September 2013. A piece of the avantgarde composer and concept artist John Cage is presented on an](https://c8.alamy.com/comp/DF8178/the-john-cage-organ-art-project-is-pictured-at-saint-burchardi-church-DF8178.jpg)