HALBERSTADT, Germany (AP): A small organ in eastern Germany is the headliner of the world’s slowest concert. It has been playing the same piece of music by composer John Cage at a glacial pace for nearly 25 years. A rare chord change on Wednesday – from seven notes to eight – represented the completion of about 4 per cent of the 639-year endeavour of the John Cage Organ Project Halberstadt.

“It’s time to let the sounds unfold over time, regardless of the bar line,” said the composer. And so, for the past 25 years, he has been playing music on the organ that could not…

A rare chord change has taken place in the world’s slowest musical performance at a church in Germany. John Cage’s organ composition, which began in 2001, is scheduled to continue…