We went to a rock festival once with my friend and we took videos from a few songs from each performer. It was a custom request from the festival organiser and we got free access to the festival. The end result was really good and they invited us to film the next festival. Sadly, and I cannot remember why, we were never able to attend after. We had only normal equipment but they felt that the sound quality was better than they ever had before.
I can pat myself on my back for this, it was a job well done and we really enjoyed it as well. So here is my friend who I was working with filming, and I took a picture of her filming.