 Oh, Professor, that's wonderful. I'm positively thrilled. It's really too exciting for words. Oh, Professor, I don't mean to be stupid, but what's a concerto? Irma, my little pigeon, a concerto is a piece of a man's life set to music. The agony of his soul, the torment of his youth, the anguish of his struggles, and the torture of his misery. Can you dance to it?