Giles Martin explains what he learned about The Beatles’ Revolver while remixing (and de-mixing) the 1966 milestone album. The Beatles recorded 190 of their songs at EMI Studios in Abbey Road with producer George Martin.
The guitars and recording equipment the Beatles used to make Revolver
The Beatles had some new and powerful amps to work in their favor, including a cream-colored Fender Bassman (intended for McCartney but appropriated by Harrison), two new blackface Fender Showmans with 1x15 cabs, and 120-watt Vox 7120 guitar amps. (Guitar World report)
New guitars for the sessions included Harrison's recently acquired 1964 Gibson SG Standard, his main guitar for Revolver, and Lennon and Harrison's sunburst Epiphone Casinos, a model that McCartney had owned for some time and also used on Revolver (Harrison's and McCartney's models had vibratos; Lennon's had a trapeze tailpiece).
Lennon also used a Gretsch 6120 during the recording of Paperback Writer on April 3, and he and Harrison might have used their Sonic Blue Fender Stratocasters, acquired in 1965 during the making of Help! McCartney, for his part, relied on his Rickenbacker 4001S bass, which he had received in the summer of 1965.
At the same session, Lennon had been voted down by George Martin when he plugged into a Gibson Maestro Fuzz-Tone. The new direction was evident from the very first track recorded: Tomorrow Never Knows. Titled simply Mark 1.
Lennon wrote the song as a mantra composed of one repeating melody line over a driving bass and drum track. "It's only got the one chord, and the whole thing is meant to be like a drone," Lennon told Martin and Emerick.
In 1966, joined by their new recording engineer Geoff Emerick, The Beatles and producer George Martin set about using the recording studio as their sonic workshop, creating sounds never heard before and introducing classical Indian music into Western pop rock.
But, like most pre-1968 Beatles albums, Revolver was recorded to four-track tape, with the result that the main rhythm instruments – usually guitar, bass and drums – were placed together on one track, making it impossible to separate them for stereo mixes. (Loudersound)