I saw Josh White perform once in Manchester. During one song a string broke on his guitar. He didn't stop playing, but changed the string as he played, without missing a beat. Needless to say, I was very impressed. Years later I mentioned this to Hootenanny who told me that, in fact, this was a part of his act and was something that he did on purpose! I cannot recall any of the songs that he sang that night (it was a long time ago), but I do remember how much I enjoyed listening to the man.