We've only been doing this blog for a couple weeks, but we don't mind trying to top ourselves, and I suppose this qualifies. Down the page a bit you will find two posts with vivid comparisons of various versions of 1) the opening notes of Piano Concerto No. 4, and 2) the closing moments of Symphony No. 9. Now the ultimate obsessive blast-off: the opening two chords of the Eroica symphony down through the years. Some might say these two little (big) chords started to change Western music forever. Warning: Fascinating but possibly headache inducing.