 As he had done since "With the Beatles", Harrison continued to vary his guitar sounds, favouring a Gretsch Tennessean guitar for the first time, in addition to using his twelve-string Rickenbacker 360/12.Author André Millard describes this period as one in which the recording studio changed its identity from the Beatles' perspective, from a formal workplace into a "workshop" and "laboratory".Recording was completed on 26 October, partway through the band's four-week tour of the UK.