1967 – The Beatles complete the sessions for Sgt. Pepper’s Lonely Hearts Club Band at Abbey Road studios in London. The final recordings are of gibberish and noise which would follow “A Day in the Life” in the run-out groove. They record assorted noises and voices, which engineer Geoff Emerick then cuts up and randomly reassembles and edits backwards. At John Lennon’s suggestion, they also add a high-pitch whistle audible only by dogs. These are omitted from the American version of the album.