Revolver (Beatles album) group collective since 1962, and gave them an unprecedented amount of time to prepare for a new album. Writing in "The Beatles Forever", Nicholas Schaffner cites 1966 as the start of the band's "'psychedelic' period" and adds: "That adjective implies not only the influence of certain mind-altering chemicals, but also the freewheeling spectrum of wide-ranging colors that their new music seemed to evoke." Music journalist Carol Clerk describes "Revolver" as having been "decisively informed by acid", following John Lennon and George Harrison's continued experimentation with the drug LSD since the spring of 1965.<ref name="Clerk/Uncut"> Available at Rock's Backpages (subscription required).</ref>
Greatest Hits Volume 2 (Beatles album) created for the late-1966 compilation album "A Collection of Beatles Oldies". The compilation was the only album release worldwide of the original stereo mix of "She's a Woman" until "The Beatles Box" in 1980 and the "Past Masters" collection in 1988.. The album was pressed and distributed through Australia by EMI Australia and through Southeast Asia (Singapore, Malaysia and Hong Kong) by EMI (SEA). By mid-1973, both volumes of the compilation had sold over 100,000 in Australia. In 1973, both volumes of the album were repackaged as a double album by EMI Australia to commemorate the 10th anniversary of the