Thanks very much Roger. It was as I expected about J.J.Cale. I couldn't think of any reason why that could have been true. I think there is likely to be more substance in the stories about him playing with Gerald Moore (a smashing guitarist and singer) and Heron. He has certainly been around for a while now.
He won't remember me - then a scrawny youth hanging around asking dumb questions, but I may well be cheeky and e-mail him to ask if he has any recordings of his beautiful songs from the old days. Wish I could be there for your sixtieth Roger. I think if Bill is playing, I would gatecrash it for sure! Have fun.