Revolver (Beatles album) as the Beatles'. While also highlighting the importance of the production, David Howard writes that "Revolver" was a "genre-transforming album", on which Martin and the Beatles had "obliterated recording studio conventions". Combined with the similarly "visionary" work of American producer Phil Spector, Howard continues, through "Revolver", the recording studio had become "its own instrument; record production had been elevated into art." Whereas "Sgt. Pepper" had long been identified as the Beatles' greatest album, since the 2000s "Revolver" has often surpassed it in lists of the group's best work. Sheffield cites the album's 1987 CD release, with the full complement of
A Collection of Beatles Oldies Out" and "Paperback Writer", were remixed in stereo for the album, since the majority of the Beatles' singles had only been mixed for mono release previously. The stereo mixing was overseen by George Martin, the Beatles' producer, with none of the band members present. The mixing sessions took place between 31 October and 10 November 1966 at EMI Studios (later Abbey Road Studios) in London. Martin was surprised at how time-consuming the remixing of "She Loves You" and "I Want to Hold Your Hand" proved to be. In the case of "She Loves You", the 1963 two-track recording tape had