The orchestra plays a Beethoven symphony. Four or five hundred people start running. They try to cross the finish line of a 4 km or 8 km course before the music stops, 50 minutes later. Before long, the crowd is cheering and clapping, the orchestra is playing like mad, the runners are pouring across the finish line, and the City Hall clock is bong-bong-bonging eleven o'clock. Is that a great way to spend a Sunday morning, or what?