When Beethoven invented boogie-woogie: Nearly 200 years ago, in this passage from his final piano sonata, the epic opus no. 111. And yes, folks, this is how he wrote it, not jazzed up by a modern Jerry Lee Lewis. Needless to say, since it's Ludwig, nothing like this had ever been written before. And here's the great Sylvie Guillen dancing to it (which I saw live two years ago). Our new Beethoven 9th film and book here. -- G.M.