![The world's slowest musical composition, John Cage's 'As Slow as Possible,' changes chord for first time in seven years - CNN Style The world's slowest musical composition, John Cage's 'As Slow as Possible,' changes chord for first time in seven years - CNN Style](http://cdn.cnn.com/cnnnext/dam/assets/200907083433-01-john-cage-organ-art-project-chord-change-restricted.jpg)
The world's slowest musical composition, John Cage's 'As Slow as Possible,' changes chord for first time in seven years - CNN Style
![Visitors of the John Cage Organ Project listen to the sound of the organ at the St. Burchardi church in Halberstadt, Germany, 05 August 2011. The project 'As slow as possible' is Visitors of the John Cage Organ Project listen to the sound of the organ at the St. Burchardi church in Halberstadt, Germany, 05 August 2011. The project 'As slow as possible' is](https://c8.alamy.com/comp/DAPA5G/visitors-of-the-john-cage-organ-project-listen-to-the-sound-of-the-DAPA5G.jpg)
Visitors of the John Cage Organ Project listen to the sound of the organ at the St. Burchardi church in Halberstadt, Germany, 05 August 2011. The project 'As slow as possible' is
![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)