"Vexations" is an enigmatic piano piece by Erik Satie (c. 1893) consisting of a short theme that, according to Satie's own instruction, should be repeated 840 times — resulting in a performance lasting 12 to 24 hours. First publicly performed in 1963 in a relay performance organized by John Cage, it stands as a pioneering work of minimalism and endurance art.
Source
Public Domain
