Glad you raised the issue.  I live far enough away not to be affected, but feel "the right to peace and quiet" should have been included in the Bill of Rights. What with all of the great sounding personal listening devices out there you'd think people could find a way to cut a little slack for those of us who like to be outside on a mellow, warm summer evening with just the sound of crickets, friends, and a little traffic to keep us company. But we live in a "screw you, I got mine" world, so it's hard to even get a civil discussion on the issue going without it being shouted down by some. And as far as how it affects the wildlife? "Well, I've got a picture of a couple of ducks up on my wall - so screw them too!"  Besides, the City and others make money from these concerts, and we all know that money makes the world go 'round.