[CAUT] Nice inside-the-action-cavity camera work

[Ed Sutton]

I would like to know more about this energy from the artist's fingers. Does it change frequency from note to note?
Does a poor performance leave a dissonant imprint on the soundboard?
Is this why I can't get the unisons on Prof. J---'s piano to stay in tune?
Ed S.
  ----- Original Message ----- 
  From: Brent Fischer 
  To: caut at ptg.org 
  Sent: Thursday, September 02, 2010 3:00 PM
  Subject: Re: [CAUT] Nice inside-the-action-cavity camera work





                           Mark, thanks for coming across this clip.  Knupfer's claim is valid, artist's 
                          do leave tonal imprints on the soundboard from a strong performance. When
                          checking after a concerts I have heard is assertion. Bill Garlick taught the 
                          same theory about Steinway keybed design and the resonating cavity created
                          by floating the middle spruce slats of the bed. Energy transferred through the
                          artist's fingers reaches through the keyframe to keybed setting the unglued
                          slats in vibration. This is the basis of his thinking. Checking the studs with
                          the sustain pedal down is critical for this connection to work.  The
                          guy had his hands full with the pianist, better not mention names, 
                          declaring the "perfect" instrument isn't perfect enough for all  pieces.










                           On Wed, 9/1/10, Mark Dierauf <pianotech at nhpianos.com> wrote:

                            From: Mark Dierauf <pianotech at nhpianos.com>
                            Subject: [CAUT] Nice inside-the-action-cavity camera work
                            To: "College and University Technicians" <caut at ptg.org>
                            Date: Wednesday, September 1, 2010, 11:26 AM


                            They must have used awfully small cameras for this, and either several of them or else multiple takes. I'm really looking forward to seeing this. Anybody heard of Mr. Knüpfer? This film could be a great promo for our services. Click the little "watch" button on the lower right of the photo to see the clip. The recording of Bach's Art of the Fugue is already available, and I'll be curious to see how the piano comes across.

                            - Mark


                         
                   
             
       

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