[CAUT] partial rescaling of C7

[Dale Erwin]

Hi Robert
 Is this is a school piano?
 The length and wire size need to be measured and run thru a scaling program to see what the tension is. The Model B stwy has the same issues of low tension with the tension dropping off from approx 155 lbs per string to around 110 lbs at the break. I have corrected the tonal issues in several ways. Either by adding a few wrapped bicords on the existing bridge, which I would suggest here.. or adding a transition bridge with wrapped strings. Either way was an improvement. Its doubtful going up a size will improve enough  and could likely create other tonal problems. Just my two cents worth
  Dale


Dale Erwin R.P.T.
Erwin's Piano Restoration Inc.
 Mason & Hamlin/Steinway/U.S. pianos
www.Erwinspiano.com
Phone: 209-577-8397

 
  





-----Original Message-----
From: Robert Callaghan <robert.callaghan at harmonicity.com>
To: caut <caut at ptg.org>
Sent: Mon, Aug 27, 2012 7:12 am
Subject: [CAUT] partial rescaling of C7


Hello.  What are your thoughts on changing to a heavier gauge wire on 
the two lowest tenor notes just above the break on a C7?  People have 
told me they want more tone from them, and what it sounds like to me is 
the wire gauge is just a little too light.  Perhaps they should have 
even been wound strings there.  It's a fine piano and I wouldn't be 
critical of it myself, but I'm being pressured to see if there is 
anything that can be done to make that F and F# more resonant.  It's 
from 1977 and I wonder if maybe Yamaha themselves have made some slight 
changes in that area to the C7 over the years.

Thank you for any suggestions.
Robert


 

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