Meeting Place: Mike Cooney
This is why we liked Mike Cooney (that little "ribs" noise he made with his mouth) and nice fingerstyling.
He also played concertina very well even back in 1962. He would start out by chatting a bit and settling in ... he'd talk and explain about the instrument (oh lord didn't those folk music people go on and on that way especially while they were tuning their instruments, but in this case it was thankfully a concertina so no explanations about how tuning forks evolved through the centuries or history of the capo just a friendly little monologue about the "concertina").
Which of course had buttons, so he had to explain that, and bellows for air (on and on he went sometimes but it was all interesting). Then he would rasp air in and out of the bellows without pushing the buttons (and the concertina would wheeze and pant) and Mike would point out that it was good instrument for making obscene phone calls. And the audience would laugh.
Then he would start his first song. He'd assume a serious demeanor and play a few bars from "Three Blind Mice" which got the audience laughing, too. Then he'd play the song, maybe one like this:
Can't You Dance the Polka?