"Revolution 9" is a sound collage from the Beatles' 1968 self-titled double album. The composition, credited to Lennon–McCartney, was created primarily by John Lennon with assistance from Yoko Ono and George Harrison. Lennon said he was trying to paint a picture of a revolution using sound. The composition was influenced by the avant-garde style of Ono as well as the musique concrète works of composers such as Edgard Varèse and Karlheinz Stockhausen.
