The Beatles (album) stereo only. In the UK, the following album, "Yellow Submarine", was the last to be shipped in mono. The mono version of "The Beatles" was made available worldwide on 9 September 2009, as part of "The Beatles in Mono" CD boxed set. A reissue of the original mono LP was released worldwide in September 2014. The album's sleeve was designed by pop artist Richard Hamilton, in collaboration with McCartney. Hamilton's design was in stark contrast to Peter Blake's vivid cover art for "Sgt. Pepper's Lonely Hearts Club Band", and consisted of a plain white sleeve. The band's name, in Helvetica,
Sgt. Pepper's Lonely Hearts Club Band in the Life" as the "Sgt. Pepper" track that best exemplifies this approach. In his book on ambient music, "The Ambient Century: From Mahler to Moby", Mark Prendergast describes the album as the Beatles' "homage" to Stockhausen and Cage, adding that its "rich, tape-manipulated sound" shows the influence of electronic and experimental composer Pierre Schaeffer. The musician and producer Alan Parsons believes that with "Sgt. Pepper" "people then started thinking that you could spend a year making an album and they began to consider an album as a sound composition and not just a musical composition. The idea was gradually