[pianotech] Noise in bass strings

[Joe Goss]

Hi, If you have an ETD tune each string with the ETD then check the 3rd Partial of each string of the unison. If they are not close change both strings. It is easy to do with my SAT.
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: David Boyce 
  To: pianotech at ptg.org 
  Sent: Monday, August 06, 2012 3:41 AM
  Subject: Re: [pianotech] Noise in bass strings


  I didn't know the "Erard" bit. When I order strings from John Delacour I specify "whipped ends" if required. Perhaps Erard invented the method.  On the Piano Strings page of my website http://www.davidboyce.co.uk/piano-strings.php there are a couple of pics at the top of the page showing whipped ends on both old and new strings.

  The difference in length is cetainly a bit odd, Terry. How do they compare at the bottom end? If, overall, the wound length is different, that would obviously be likely to give rise to odd beats.  And even if the wwinding was the same length, but one string a bit further down, so that the windings end up nearer the bridge, the hammer then effectivel has a different striking point on the wound length and that too could surely give rise to an effect.

  Is the effect bad enough, and the piano good enough, to warrant replacing those four strings?

  Best regards,

  David.


  Terry...here is a pic posted by John Delacour a while back...he calls this an Erard whip.


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