Math/Physics Problem: degrees of rotation of tuning pin =howmuchpitch change

[Ed Sutton]

Theory and Practice of Piano Tuning by Brian Capleton has a 40 page chapter on Setting the Pin.
www.amarilli-books.co.uk

Ed Sutton
  ----- Original Message ----- 
  From: kurt baxter 
  To: Pianotech List 
  Sent: Saturday, March 29, 2008 8:02 PM
  Subject: Re: Math/Physics Problem: degrees of rotation of tuning pin =howmuchpitch change


    My curiosity along those lines concerned tuning stability, and how
    dimensional change in bridges and soundboards, or how much
    rendering across a bridge accounted for what we hear in real
    pianos. I expected a moderately accurate proportional
    indicator, rather than a three decimal point absolute. List
    discussions seem to be thick with binary all or nothing
    arguments, but I live somewhere well in between.

  Ron,

    I think I may have found a kindred spirit :)

  Beyond my simple thirst for knowing why, my interest here lies
  in trying to figure out what I am actually doing when I find a stable
  resting place for a member of a unison. My goal is to distill a belief 
  based on reason and evidence rather that myths that somehow
  seem to work, as if by magic.

  We are not scientists, but I feel that much can be gained by 
  taking a few minutes and pretending we are.

  For me, the issue of pin movement is a good place to start, 
  although it is only the tip of my current set of ideas for
  real-world experimentation.

  If you would like to share ideas more fully, I would
  enjoy continuing this discussion through email if 
  you want.

  Let me know.

  (and as far as the original question goes, I have also posted
  it on a physics forum, so I will let you if they have anything to
  say to clear things up)

  Thanks,

    Kurt



   
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