LOST McCartney Lennon and Bonham recording

What if: In January 1969, Glyn Johns, having just recorded Let it Be and Led Zeppelin 1, invited John Bonham to sit in with a Lennon and McCartney rehearsal? This video is a simulation of what might have happened in early 1969, had Paul McCartney, John Lennon and John Bonham met up through a Glyn Johns Invitation! It sounds like a lost recording, recorded by Cunningham Manor. It would certainly be a rare recording!