This is the William Tell Overture, and it's from the Rossini Opera, "Guillaume Tell." It's only famous for a couple of things: First, the Overture that everyone knows, and was stuck in my head this morning. Second, it's REALLY long, over 4 hours. And lastly, it was Rossini's last opera before he went into early retirement.
Just reading over the plot synopsis, I was bored. It's about a marksman, and takes place in Switzerland.
