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Bach's Neverending Canon

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Uploaded by on Mar 2, 2008

Canon a 2 per Tonus, from Bach's "Musical Offering." The top voice plays a version of the tune given to Bach by Frederick the Great. The other two voices are in 2-part canon, with the bottom voice leading and the middle voice following a measure later and a fifth above. The canon is designed so that it modulates up a whole step each time through; thus, after six times through, the music returns to C Minor where it began, but an octave higher.

This recording, inspired by a suggestion in Douglas Hofstadter's "Gödel, Escher, Bach," uses the Shepard Tone technique, meaning that a lower octave is constantly being faded in for each voice while the upper octaves slowly fade. Thus, by the time C Minor is reached again, the lower octave has taken over; so we're back exactly where we started.

The bottom part (leader) is recorded on the left channel, and the middle part (follower) is recorded on the right channel to make it easier to follow. [UPDATE: The stereo effect didn't transfer to YouTube. However, the stereo separation does work on the downloadable versions that you can access at the link below.]

Read more at:
http://mmmusing.blogspot.com/2008/03/canon-loop.html

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Music

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Standard YouTube License

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Uploader Comments (MMmusing)

  • The middle line is silent....would like to hear all three parts. :(

  • @sarahbroadbent1 All three parts are there, but it's set up with the bottom part on the left channel and the middle part on the right channel. You must not be getting the right channel. (I thought when I'd first uploaded it that the stereo separation hadn't come through, but I just checked and it is working.)

Top Comments

  • You may want to put this on a long Möbius strip.

  • The brilliance of bach is always unsurpassed. Even the use of same melody with modulation. Each time the melody repeats, it seems so different.!

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All Comments (123)

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  • @sarahbroadbent1 read your previous chump comment.

  • @mtv565 ?Huh?

  • @sarahbroadbent1 you need to dig your ears.

  • @MMmusing You are right!!! I fixed my settings. No wonder stuff has been sounding thin!  LOL

  • @DeadHappyFilm

    Really? I think it came from the Great Pumpkin.

  • Musical mobius strip

  • I SWARE! THE DEVIL DIDN'T GIVE HIM THIS GIFT IT HAD TO COME FROM GOD!

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