Jim, I think you do have a point about folk clubs.   Here in the U.S. it is a bit different since we really do not have clubs like those that exist on your side of the Atlantic. Here in the U.S., I don't think there is that much emphasis on the type of music that is being performed. Usually promoters will give enough of a description that the audience will know what kind of performer they are going to see.

I guess it is just cultural differences, and as you correctly pointed out - our views are actually very similar.