In common with many of my peers, I was the victim of the local paper's photographer when in a band as a teenager. (We were mostly in bands as teenagers, right?)
The thing that you have to do, because either the readers, the photographer or the photographers assumption of the readers is/are significantly thicker than planks, is stand in a row against a thing and clutch your instrument (ooer) so that the nice people know that it's a picture of a beat combo (no popular here) rather than a surly mob up before the beak for pinching copper's helmets (ooer^2).
Non-name snapper's inspiration does not appear to have moved on in the last quarter-century. Other than in sheer quantity.
Mostly right:
http://www.jwz.org/blog/2011/05/nightclub-photography-youre-doing-it-wrong/ most especially the thirteenth item.
[1] Peel, obviously.