I'm surprised a few of you guys (and I'm not singling you out, Trevor) seem to be dwelling on the CIRCUMSTANCES of the shot instead of its artisitc merit.
I don't think the circumstances (ie sitting in a crowd at a performance) are important at all in this discussion.
Ok, say I RENT this theatre out. I hire this dancer, set up all the lights myself, have him or her perform, and take the shot. Suppose my photo looks JUST like Tuna's.
Are you trying to tell me mine is more legit and has more artisitc merit because of the circumstances of the setup?
Sure, on a certain level you can make that argument (that the process is a big part of the artistic aspect). Still, if we're simply discussing the creative visuals and whether they work or not, both our shots would be the same...
My point earlier is that a theatrical environment with dramatic lighting and trained performers will always be a fertile place to create photos...