"Now and Then" is based on a John Lennon cassette recording from the late 1970s that the three surviving Beatles worked on in the mid-1990s around the Anthology project and which A.I. technology recently helped bring to completion. But it's hardly a unique instance of ex-Beatles working together, and prior to their official split the band had released a number of recordings featuring fewer than all four Beatles. Listen to some along with the rest of the episode here until November 12.
