Most likely the strings were fresh, and were still stretching during the performance. I have not noticed Joan to have a constant-tuning fetish in the past. Lucky you to be there! Joan is the kind of performer who (in my experience) always does her best to deliver a meticulous performance, because she feels it is her duty to do so as a service to the audience who came to see her. She's got class.

As far as I know, she does not smoke and never did.

- LH