I think concerts can be too loud, generally. I wish the music was just a bit quieter, as I think it would actually be easier to hear what instruments are doing what and make the entire thing more enjoyable. Of course, depending on what kind of concert it is, you can possibly simply get further away.

At a small (indoors) concert I went to on Friday, one alternative band was loud, but really enjoyable, while the next band, which was indie/experimental, was easily twice as loud and absolutely unbearable. It was really just random thrashing and , and I don't see how anybody could like it. It would've been at least tolerable if it'd been quieter. And then Contraband played, and it was a perfect volume and awesome.