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#2196487 - 12/12/13 10:39 AM Video Animation of Bach's "Crab Canon"  
Joined: Feb 2012
Posts: 59
tlh1 Offline
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tlh1  Offline
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Joined: Feb 2012
Posts: 59
Florida
Great video

http://www.openculture.com/2013/02/..._canon_visualized_on_a_mobius_strip.html

Years ago I read Goedel, Escher, Bach but really didn't get much out of the Bach part (that was before my life as an adult beginner). In any case, this animation does a great job illustrating the underlying structure. A Moebius strip? Give me a break!

Hope this hasn't been posted here before.


Oliver
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#2196509 - 12/12/13 11:32 AM Re: Video Animation of Bach's "Crab Canon" [Re: tlh1]  
Joined: Mar 2013
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Polyphonist Offline
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Polyphonist  Offline
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It has been posted before, more than once. But it deserves another thread. grin


Regards,

Polyphonist
#2196557 - 12/12/13 01:23 PM Re: Video Animation of Bach's "Crab Canon" [Re: tlh1]  
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jotur Offline
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jotur  Offline
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I love this, and always fun to see it again. I'm glad you found it, and thanks for posting.

Cathy


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#2196561 - 12/12/13 01:36 PM Re: Video Animation of Bach's "Crab Canon" [Re: jotur]  
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tlh1 Offline
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tlh1  Offline
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Florida
Crab/p, I should have known smile Why didn't I find it when searching?

BTW is this in Eb major? What is this upside down question mark clef and that extra large 'sharp sign' in the beginning?


Oliver
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#2196587 - 12/12/13 03:04 PM Re: Video Animation of Bach's "Crab Canon" [Re: tlh1]  
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Polyphonist Offline
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Polyphonist  Offline
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It's in C minor, and the weird notation is the shorthand Bach uses instead of writing out the whole realization, which can be viewed here.


Regards,

Polyphonist
#2196589 - 12/12/13 03:23 PM Re: Video Animation of Bach's "Crab Canon" [Re: Polyphonist]  
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tlh1 Offline
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tlh1  Offline
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Florida
Thank you, Polyphonist. So the first note (in the video) is a C? I thought it's the treble clef and then the first note would be an E (but the flats would be wrong), right? And doesn't the first note often decide whether it's the major or its parallel minor? Sorry I'm confused ...


Oliver
#2196627 - 12/12/13 04:43 PM Re: Video Animation of Bach's "Crab Canon" [Re: tlh1]  
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Polyphonist Offline
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Polyphonist  Offline
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New York City
Originally Posted by tlh1
Thank you, Polyphonist. So the first note (in the video) is a C?

Yes.

Originally Posted by tlh1
I thought it's the treble clef.

It isn't.

Originally Posted by tlh1
And doesn't the first note often decide whether it's the major or its parallel minor?

Not really.


Regards,

Polyphonist

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