No One Alive Today Will Hear it End
A 1,000 minute arrangement of The Longplayer, a 1,000-year-long piece of music by Jem Finer, is being performed live at The Roundhouse in London. Until now, the piece had only been generated and performed by computers at The Lighthouse in Trinity Buoy Wharf in London. The piece began December 31st 1999 and will be completed at the end of the year 2999.
This performance takes place in a 20 meter circle where musicians play 1,000 year old Tibetan Singing Bowls arranged in six concentric rings. In 2002, Finer created an arrangement of the piece—he wrote a score for the musicians and dictated the proper arrangement of the instruments. And in case you were wondering, 1,000 minutes is 16.667 hours. That is 1.90132588 x 10-6 the length of the complete work.
See the BBC article (and video) here.