An audience is a precious commodity, easily lost. I'd think that what the audience wants should tend to influence the dynamics from the front-and-center folks..... How DARE they presume to enjoy the singing so much that, inspired by a fine singer, they might think to so much as open their throats and join in!!!

When I think of the money I've spent on folk music over many years-- never realizing how many of the "performers" were watching for any opportunity to wring resentment out of my pleasure-- it really pisses me off.

(If one is singing not for one's own joy but to control others and flatter one's own ego, well, that would sure explain a lot!)

Look, no one likes to be controlled by someone else. If YOU Love the song enough to sing it, is it really a surprise others also may love it that much as well? DAMN them for not being mindreaders! Why not just line 'em up and shoot 'em. But be sure to pick their pockets first. :~)

~Susan