Just like most concert photographers would tell you, shooting concerts is hard. It’s one of the rare photo opps wherein you’re lucky if you get even just a few good photos, and you’re likely to throw away most of the shots you captured.
Many articles on this topic provide the same basic tips: avoid flash, use fast lenses, don’t be a distraction, enjoy the show. You may think that these things would come natural when you’re shooting, but you’d be surprised to find yourself breaking these rules once you’re actually there.
However, just like most photographic rules, there are some you just have to break, at the right time. The photo above was taken around four years ago with my point and shoot Fuji Finepix 2600 with an off-cam optical slave flash on my other hand. Yes, I used flash. Unlike most high profile events, many small–town or college concerts are shot in poorly–lit venues where you have no choice but to use flash. Luckily for me, I was part of the organizing committee allowing me to shoot exactly the way I wanted, and produce a few keepers. :)
For more on concert photography, read these good articles from Photocritic and on-no.net.