Bach, Canone alla duodecima, Art of Fugue

Canon at the twelfth (with counterpoint at the fifth) from J. S. Bach's Art of Fugue, performed by Kimiko Ishizaka, with an animated graphical score. See http://www.musanim.com/ArtOfFugue/
FAQ

Q: What do the colors mean?
A: Mostly, they indicate the level of transposition. The first statement, played by the bass voice, is in blue, and the octave transpositions of that are in lighter shades of blue. When it's played transposed up a fifth (a twelfth, actually --- an octave plus a fifth), it's shown as red-orange. There's one passage transposed at the seventeenth (two octaves and a third) that's shown in yellow. Also, there's one phrase which is only two notes long, and I've used a different color for that.

Q: This video is making me feel queasy.
A: Some people experience symptoms of motion sickness when watching my videos, especially the ones that rotate. There are two versions of this video: one in which the score rotates but the notes that are playing stay toward the top ...
   • Bach, Canone alla duodecima, Art of Fugue  
... and one in which the score stays still (which means that the notes are sometimes upside-down when they're played) ...
   • Bach, Canone alla duodecima, Art of Fugue ...  
There's also a third version in which the score is elliptical and the notes of the subject (in its original form) are shown in the background:
   • Bach, Canone alla duodecima, Art of Fugue ...  

Q: Please tell me more about this recording.
A: Kimiko Ishizaka recorded the fugues and canons of Bach's Art of Fugue and put the recordings in the public domain as part of the Libre Art of the Fugue, which you can read more about here:
http://music.kimiko-piano.com/

Q: Can you explain more about these Art of Fugue animations?
A: I've written about the process of making them here:
http://www.musanim.com/ArtOfFugue/

Q: I appreciate the animated graphical scores you make; how can I support your work?
A: Thank you! The easiest way to support my work is by contributing via Patreon:
  / musanim  
If you'd like to help in more specific way, consider this:
http://www.musanim.com/underwriting

Q: Could you please do a MAM video of _________?
A: Please read this ...
http://www.musanim.com/requests/