Don't Let Me Down - Lennon's best song from those sessions wound up only being released as the B-side of this single. Both sides bear the credit "The Beatles (with Billy Preston)."
The Ballad of John and Yoko - Only John and Paul appear on this track, singing and playing all of the instruments. This single was released at Lennon's insistence in May of '69, hard on the heels of Get Back. Though it was eventually followed by two great singles, it managed to be the group's final number one in the UK during their career.
Old Brown Shoe - Harrison's second B-side is this nifty uptempo rocker.
Across the Universe - From the World Wildlife Fund charity album No One's Gonna Change Our World. Apart from its appearance on that album, it had been made available on both the UK and US versions of Rarities. Producer George Martin had deliberately sped up the tape and added bird sounds onto the beginning and end of the song for the WWF release.
Let It Be - The group's final single in the UK was the version of this song produced by Martin and featuring brass, more vocals and a mellow guitar solo overdubbed by George Harrison three months after the track was originally laid down at the live Get Back sessions.
You Know My Name (Look Up The Number) - The final B-side was this comedy number from Lennon that was gradually put together over two and a half years. It is the only track presented in mono on Past Masters Volume Two.
With the release of Past Masters Volumes One and Two, the group's entire catalog was now available on CD. It would be six years before the next official Beatles product appeared, and it was one that would showcase them in a manner that most of us had never experienced before.