Pierre, you have put your point across several times during this thread, but I still do not understand why you thought it was "uncalled for" for the performer to ask you to be quiet. You appear to believe that you have more right to converse (however quietly) than the musician has to perform or the rest of the audience to listen.

If someone wants to do his thing on stage, he better get used to people whispering the odd sentence to eachother. In Pierre's account of events I didn't spot anything that would warrant the reaction of the musician. what does he think he is, a schoolteacher calling a group of ten year olds to order?

Mind you extended loud conversation are a different matter depending of the setting. Your man should come out and play in Ireland, that will teach him.