Aria "Die Seele ruht in Jesu Händen" from Cantata 127 ("Cantata Herr Jesu Christ, wahr’ Mensch und Gott") by Johann Sebastian Bach, performed by Kristen Witmer (soprano), Rodrigo Lopez Paz (oboe), and the musicians of the Netherlands Bach Society, with an animated graphical score.
FAQ

Q: Where can I watch this performance?
A: Here:
   • Bach - Cantata Herr Jesu Christ, wahr...  

Q: What do the colors mean?
A: Colors are assigned according to pitch, in a system I call "harmonic coloring" (since it shows changes in harmonies). You can read more about this here:
http://www.musanim.com/HarmonicColoring/

Q: What do the words mean?
A: See:
https://www.bachvereniging.nl/en/bwv/...

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