I'm going to be on a business trip in Prague later this month and am thinking of taking an evening to attend a performance of the Czech Philharmonic at the Rudolfinum. What are the local standards for appropriate dress for such an occasion?
As a local, if I was going to the Rudolfinum for Czech Philharmonic, I'd wear a dark suit and a tie. However, I would consider smart pants and a dress/formal shirt perfectly acceptable too.
I wouldn't recommend jeans or polo shirts.