Sgt. Pepper's Lonely Hearts Club Band "Being for the Benefit of Mr. Kite!" and "A Day in the Life". Producer George Martin and engineer Geoff Emerick helped realise the group's ideas by approaching the studio as an instrument, applying orchestral overdubs, sound effects and other methods of tape manipulation. Recording was completed on 21 April 1967. The cover, depicting the Beatles posing in front of a tableau of celebrities and historical figures, was designed by the British pop artists Peter Blake and Jann Haworth. "Sgt. Pepper" is regarded by musicologists as an early concept album that advanced the use of extended form in popular music while
The Beatles Anthology 3" was released on 28 October 1996. The third collection featured out-takes and demos from "The Beatles" ("White Album"), "Abbey Road" and "Let It Be", as well as several songs from Harrison and McCartney which later became post-Beatle tracks. The three album covers, when laid side-by-side, become one long painted collage of various peeling posters and album covers representing the different stages of the Beatles' career. This was the work of Klaus Voormann, who also created the album cover for "Revolver" in 1966. The "Anthology" covers required Voormann to recreate elements of his cover for "Revolver" within the collage. During