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
Greatest Hits Volume 1 (Beatles album) original 1965 stereo mixes of "I Want To Hold Your Hand" rather than the new stereo mixes created for the late-1966 compilation album "A Collection of Beatles Oldies". The mono editions of the album feature fold-down mono mixes, with only "She Loves You" and "I'll Get You" appearing in true mono, due to the unavailability of stereo mixes at the time of the compilation. The cover art was borrowed from the U.S. Beatles album, "Beatles IV" with the back cover using elements from the German album "The Beatles Beat". The mono version of Greatest Hits Volume 1 was released in