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>
The Beatles (album) the album as "self-indulgent and at times unlistenable" but identified "While My Guitar Gently Weeps", "Happiness Is a Warm Gun" and "Helter Skelter" as "fascinating standouts" that made it a worthwhile purchase. According to "Slant Magazine"s Eric Henderson, "The Beatles" is a rarity among the band's recorded works, in that it "resists reflexive canonisation, which, along with society's continued fragmentation, keeps the album fresh and surprising". In his review for AllMusic, Stephen Thomas Erlewine said that because of its wide variety of musical styles, the album can be "a frustratingly scattershot record or a singularly gripping musical experience, depending on