Concivably the number of shows/tickets might increase and the price decrease, since setting the price above the market rate is one of the inefficiencies that monopolies introduce.

For artists who are maxing out their # of shows and selling out you're right though.

Probably not. The fees get split between them already.

What would be nice would be having independent venues that aren't all selling the same canned water and ticket prices showing the fees.

Everybody would be making the same, but it would be apparent that your favorite band is the one asking too much for tickets.