This pipe organ is playing a single, nonstop song until 2640

Popular Science 

The avant-garde composition'ORGAN /ASLSP' is being stretched to its limits. Breakthroughs, discoveries, and DIY tips sent six days a week. On September 5, 2001, a concert started inside a medieval church-and it continues to this day. If all goes as planned, the performance won't finish for another 616 years . One may expect a composition like John Cage's to encompass thousands, if not millions of pages of musical notation--but as its name implies, it's the exact opposite.