Longplayer

Besides Hiorns's Seizure, another Artangel project I have experienced was its sound project Longplayer - a computer-generated music piece which will play for 1000 years without repetition.  It started playing at midnight on 31 December 1999 and will continue playing until 31 December 2999.  You can hear it at the top of the lighthouse at Trinity Buoy Wharf in east London.  It is hard to believe that when I visited there in December 2009, it has already been playing for almost ten years non-stop.

Vide from billgribs' youtube channel