At Slate today, Jan Swafford explores the differences between playing Beethoven on today's pianos compared to the ones that Ludwig van used to write his music. It's a great read, if you feel like reading about why ancient pianos were way better (well, maybe not better. Different.) than modern pieces.
In the article, there are clips of pianists of both eras playing two of Beethoven's compositions - the second is his piano sonata No. 23, and the first is the Moonlight Sonata.
Isn't the Moonlight Sonata the one that turns you into an omnivorous mammal under the bright, shining light of the moon? I think so.