You Know My Name - Today John Lennon booked a session for what he hoped would be a Plastic Ono Band single: You Know My Name (Look Up The Number), with What's The New Mary Jane on the b-side.
The 7pm-3am session began with a copy made of the third mono mix of You Know My Name made on April 30, 1969, the day the song's vocals were recorded by Lennon and Paul McCartney.
What's The New Mary Jane had been mixed on on various dates in 1968 and 1969. A new mix, numbered stereo remix four, was made on this day, followed by a fifth that included simultaneous vocal and noise overdubs by Lennon, Yoko Ono and EMI and Apple employees who were present in the studio.
Parts of this new mix was copied onto a new tape, alongside a playback of remix stereo four, resulting in a new mix that had different parts of the song playing out of sync. It was then edited for release, and Apple announced a release date of 5 December 1969.
This never happened. Instead of being issued as a Plastic Ono Band single, this day's edit of You Know My Name (Look Up The Number) became the b-side of Let It Be in March 1970. What's The New Mary Jane, meanwhile, remained unreleased until Anthology 3 in 1996.