From BeatlesWiki
John and
Paul, who had gotten tape copies of the songs
Revolution and
Ob-La-Di, Ob-La-Da and listened to them extensively over the weekend, must have decided that they were not good enough in their current form. So from 3:30 to 8:00 PM, two new mono mixes were made of
Revolution, while
Paul overdubbed a new lead vocal onto
Ob-La-Di, Ob-La-Da, then mixing it into mono. From 9:00 PM to 3:00 AM, The Beatles rehearsed
Cry Baby Cry, filling four, thirty-minute, tapes with unnumbred and unusable takes.
[edit] Recorded On This Date
- Revolution, rough mono mix (*)
- Revolution, rough mono mix (*)
A (*) indicates a performance not available on any release, legitimate or bootleg.
A (%) indicates an overdub, edit piece, or basic track available only as part of another recording. The overdub, edit piece, or basic track by itself has not been released.
[edit] Source