[pianoben]

For an alternative (but still very valid) interpretation, Wanda Landowska playing BWV 903 on a harpsichord in 1935 totally blew my mind: https://www.youtube.com/watch?v=h-tsbumcyVc

My piano teacher pointed me to this recording when I studied the piece with him. It was scandalizing at first, but the free improvisation in the arpeggiated chords is almost miraculous. (I also love Paul Badura-Skoda's take on the piece: https://www.youtube.com/watch?v=Xx5gojkXdeI)