The Passacaglia and Fugue in C minor BWV 582 by Johann Sebastian Bach, performed by E Power Biggs, as visualized by me using Ableton Live. I did the keyboard and pitch wheel overlays using a Max for Live device by Samuel Halligan called Pop-Up Piano. Read more about this piece: I wrote about this visualization method in the Journal of the American Musicological Society: If you like this video, support my Patreon:
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