“This was one of the biggest surprises, I think, because I had no idea it existed. It’s George with Klaus [Voorman] on bass and Ringo, just sketching out an idea for the song, trying to work out the best vibe.

“As far as we know, it’s the very first recording he did of it. Whereas Paul, in particular, liked to work up a song on his own before presenting it to other musicians, George tended to be more collaborative.

“What’s cool about this is that it shows the roots of the song, and it’s got a great feel to it, the drums sound great. It was recorded on an eight-track desk, but only using four of the tracks, and it’s a purely live performance. I think it’s a good counter-point to the finished version that everyone knows so well, there’s a noticeably different groove to it.”