Studio Two, EMI Studios, Abbey Road
Engineer: Ken Scott
This was the session in which Eric Clapton recorded his famous guitar solo onto While My Guitar Gently Weeps.
George Harrison had invited Clapton to the session earlier that day, while giving him a lift from Surrey to London. Despite Clapton's initial wariness about performing on a Beatles song, Harrison insisted that it would be fine.
Clapton used the Gibson Les Paul guitar that Harrison had given him a month previously. His presence in the studio reportedly made the other Beatles more attentive and enthusiastic about the song, doubtless to Harrison's relief.
The solo replaced an earlier guitar track performed by John Lennon on the previous day. Harrison overdubbed organ and two lead vocals, Paul McCartney added vocal harmonies and a distorted bass guitar part, and Ringo Starr played tambourine and castanets.
Mono and stereo mixes were made on 7 October, but these were improved upon on 14 October.