John Cage: Organ playing 639-year-long piece changes chord
John Cage: Organ playing 639-year-long piece changes chord The longest - and slowest - music composition in existence had a big day on Monday - it changed chord for the first time in two years. Crowds gathered at a church in Germany to witness the rare moment, which is part of an artistic feat by avant-garde composer, John Cage.incrediblemusictimelink