I have seen everything from tee shirt and jeans to suit and tie/evening gown. Business Casual is most common. If you have a ticket you will be allowed in. No fashion police are present.
Depends on what the show is you're going to, also time of day.
Well, all depends on the show's, for this Friday, 5/03 ,casual, or guayabera and jeans
For classical concerts, I wear a sport jacket, no tie. However, this is a college campus, and you will see many varieties of dress, even at a classical concert.
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