You are sitting between two unknown people. The seat feels hard. Something discordant is being played on stage. You would very much like to get up and leave but it is impossible to do so unobtrusively. A sudden crescendo fills you with hope that the composition is nearing its end but alas it seems to have acquired a new life. So you sit, afraid to cough, feeling a sneeze coming up and you refrain from scratching a sudden itch on your left elbow. All you can do is muse: How is it that a soaring melody by Mozart composed more than two hundred years ago can fill you with such joy while this contemporary music is causing you such misery?