The essence of the classical style is the musical joke. It was from the joke that Haydn is able to evoke such joy in his listeners, or Beethoven (particularly) was able to produce some of the most heartrending pathos in his music. The constant frustration of expectations creates a deep sense of identity. Why? For whilst expectations are frustrated, we are led by an expert into the world of the unexpected which at once seems so natural. A very busy week, what a lot achieved. Very tired, but not feeling as ill as last night.