No not a hitherto unknown work by John Cage. It's the World's longest concert ever. In Japan.
Japanese musicians overcame fatigue and a major earthquake to set the record for the world's longest concert on Saturday, playing 184 hours non-stop in a program that ranged from The Beatles' classics to Japanese traditional harp music. Over 900 musicians aged 6 to 89 took turns performing in the 9-day marathon--with breaks of no more than 5 minutes between acts--at a small railway station in Hikone city, western Japan, according to organizer Kuniko Teramura, 51.