Vexations at the National Museum of Wales

"The National Museum of Wales, Cardiff, is to stage an exceedingly rare full-length performance of Erik Satie's Vexations. [...] Vexations, in case you are unfamiliar with the work, is a short keyboard piece which is repeated 840 times. The performance lasts about 18 hours."

http://babylonwales.blogspot.com/2009/06/vexations-at-national-museum-of-wales.html