What should I wear to a classical music concert?

Various Settings While the stereotypical image of a classical music concert that comes to mind is a formal concert hall where people are dressed up in formal evening wear, the reality is that classical music is performed in various settings. I've attended performances wildly different venues: outdoor events, multipurpose halls without air conditioning, a restaurant converted into a performance space for the evening, and of course, concert halls. As you would expect, the choice of attire for each of these settings may vary. Getting In The best thing to do to make sure you don't wear something that gets you denied entry to the concert in the first place, is to check your tickets to the event or Google the venue for any dress code or restrictions of any kind. For example, as part of their general booking information, the Dewan Filharmonik Petronas has a smart casual dress code and clearly states several types of clothing that are not allowed such as sports attire and flip flops...