I'd missed this - are many of the other Black and Blue tunes on whatever outtakes collection this comes from? Sorry to be so far behind the 8 ball on this one
Thanks for posting. Sounds like a Keith riff where Mick is working on coming up with the lyrics and melody. Watts and Wyman were so good then and the photos are great too.
I think it is interesting that Wayne obviously had his solo mapped out in his head. He is playing very close to the final solo. While there are variations, in essence it is the same solo.