It was a performance by the Hungarian State Orchestra. Hungarian Rhapsody and the like. Not bad. Enthusiastic applause. Calls for encores. The conductor half smiled, half grinned (my perception) and said to the audience "what do you want some strauss waltzes?". Right, like performing in the US is entertaining yokels. I yelled out "No, Schoenberg, assh_le!" I didn't really say "assh_le", just thought it - I managed some admirable restraint.