the "World's longest song" is from John Cage, called As Slow As Possible and is played continuously on an organ in a church in Germany. It will be completed in

the "World's longest song" is from John Cage, called As Slow As Possible and is played continuously on an organ in a church in Germany. It will be completed in the year 2640. https://en.wikipedia.org/wiki/As_Slow_as_Possible https://en.wikipedia.org/wiki/As_Slow_as_Possible