It depends on the performance, for some cases a formal dress is more appropriate
Most of the people I saw dressed casual. But it was Art Garfunkel
Casual... We went to see A Night With Janis Joplin & there were some people who dressed like her.
Casual.. is the best way to go!
all good answers above - can't really add;
Dressy casual. Depends on who's performing. I like to dress it up a bit. Night out. Why not?
I agree with what Kris said. It depends on the entertainment. I would dress more dressy just in case.
It varies. Some are casual and some are dressy. Wear what you like.
Semi casual.
Casual for most events I've attended
I'd say smart casual
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