George-from-Canada sent along this link, 'cos he's kewl like that:
A fascinating cross between score and histogram and a bit easier to follow than a 3-D spectrum display (though you should see one sometime. The three axii are time, frequency and amplitude: it's hypnotic).
Best comment I noticed was near the top: "Bach was an alien!" Intriguing but not possible -- any species that would fail to keep him nearby isn't clever enough for even sublight-speed space travel.
2 weeks ago