produce the record in the same manner as earlier albums and that discipline would be adhered to. No one was entirely sure that the work was going to be the group's last, though George Harrison said "it felt as if we were reaching the end of the line". Production Recording history The first sessions for Abbey Road began on 22 February 1969, only three weeks after the Get Back sessions, in Trident Studios. There, the group recorded a backing track for "I Want You (She's So Heavy)" with Billy Preston accompanying them on Hammond organ. No further group recording occurred until April because of Ringo Starr's commitments on the film The Magic Christian. After a small amount of work that month and a session for "You Never Give Me Your Money" on 6 May, the group took an eight-week break before recommencing on 2 July. Recording continued through July and August, and the last backing track, for "Because", was taped on 1 August. Overdubs continued through the month, with the final sequencing of the album coming together on 20 August the last time all four Beatles were present in a studio together. McCartney, Starr and Martin have reported positive recollections of the sessions, while Harrison said, "we did actually perform like musicians again". Lennon and McCartney had enjoyed working together on the non-album single "The Ballad of John and Yoko" in April, sharing friendly banter between takes, and some of this camaraderie carried over to the Abbey Road sessions. Nevertheless, there was a significant amount of tension in the group. According to Ian MacDonald, McCartney had an acrimonious argument with Lennon during the sessions. Lennon's wife Yoko Ono had become a permanent presence at Beatles recordings, and clashed with other members. Halfway through recording in June, Lennon and Ono were involved in a car accident. A doctor told Ono to rest in bed, so Lennon had one installed in the studio so she could observe the recording process from there. During the sessions, Lennon expressed a desire to have all of his songs on one side of the album, and McCartney's on the other. The album's two halves represented a compromise: Lennon wanted a traditional release with distinct and unrelated songs while McCartney and Martin wanted to continue their thematic approach from Sgt. Pepper's Lonely Hearts Club Band by incorporating a medley. Lennon ultimately said that he disliked Abbey Road