was the inspiration for a proto-heavy metal version of the song recorded by the English progressive rock band Yes in 1969. "I Don't Want to Spoil the Party" Lennon's "I Don't Want to Spoil the Party" returns to the sombre mood established by the opening three tracks. MacDonald considers the performance to be the album's "most overt exercise in country-and-western", aided by the tight snare sound, Harrison's rockabilly-style guitar solo, and the despondent minor-third harmony part. MacDonald likens the effect to "I'm a Loser", in that Lennon's confessional tone is again couched in "a protective shell of pastiche". "What You're Doing" The lyrics of "What You're Doing" concern McCartney's relationship with Jane Asher and demonstrate an aggrieved tone that was uncharacteristic of his writing. Author Simon Philo identifies the song's combination of musical arrangement, "sonic texture" and lyrics as an early example of the influence of cannabis on McCartney, who said the drug made him start "really thinking for the first time". The recording features a syncopated drum pattern and a jangly Rickenbacker guitar riff, as well as an instrumental coda that McCartney introduces by playing high up on the neck of his Höfner bass. A satisfactory arrangement proved elusive until the band remade the track on the final day of the Beatles for Sale sessions. While highlighting the studio techniques used to achieve the completed recording, MacDonald considers "What You're Doing" to be a possible rival to "I Feel Fine" as the Beatles' "first sound experiment". Cover versions Several of the album's cover versions had been staples of the Beatles' live shows in Hamburg and at The Cavern Club in Liverpool during the early 1960s. These songs included Chuck Berry's "Rock and Roll Music", sung by Lennon, Buddy Holly's "Words of Love", sung by Lennon and McCartney with Harrison, and two by Carl Perkins: "Everybody's Trying to Be My Baby", sung by Harrison, and "Honey Don't", sung by Starr. "Mr. Moonlight", which was originally recorded by Dr. Feelgood and the Interns, was Lennon's "beloved obscurity", according to Erlewine, and the subject of a remake towards the end of the Beatles for Sale sessions. A cover of Little Willie John's "Leave My Kitten Alone" was taped on 14 August, during the same session as the discarded version of "Mr. Moonlight", but was omitted from the album. A medley of "Kansas City" and "Hey, Hey, Hey, Hey" was sequenced as the