Thanks for posting that Vic I hadn't seen it before.

I know of a somewhat similar situation, I was not there but a long time friend (40 years plus) of one of the two people involved was. I make this clear for the sake of The Chief Policeman of Folk Music who has been known to post here.

Mike Seeger was booked at the Singer's Club. In the audience was a regular attendee Tom Paley. I expect that most people here will know that Mike and Tom together with John Cohen were The New Lost City Ramblers who in the minds of many were responsible in a huge way for reviving a huge interest in folk music.

Mike thought it would be a good idea if Tom Joined him for the set as they had worked together so well in the past. I am sure that this would have gone down very well with the people who had paid to see Mike.

However Mike was told NO, he was booked as a single and could only perform solo. I am told that this was little sister's ruling.

Hard to understand.