Young Chang tuning instability

[Dean May]

When you say one note beside each other, that wouldn't be across the
bass/tenor break, would it? 

 

When you are seeing those kinds of pitch swings it is likely humidity/air
movement as the culprit (unless he is "touching it up" as others have
suggested). Recommend a full DampChaser, undercover and string cover. Seal
off any a/c-heating registers nearby. 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of brittanykirk272 at comcast.net
Sent: Wednesday, November 21, 2007 9:22 PM
To: PTG questions
Subject: Young Chang tuning instability

 

I have regularly tuned a Young Chang PF-250 for about a year, and it sounds
horrible every time I come back for another tune.  In the tenor section, one
note might be +15 cents, while the one next to it is -15.   Unisons are
completely unacceptable.  Bass section and high treble seem to be okay.

 

The person who plays this piano is a "Horowitz", plays very hard, but I
still think the stability could be better.  Plate bolts are tight, tuning
pins have sufficient torque, I have seated strings, and I pound the heck out
of it every time I tune.  

 

Ideas?  Can not enough downbearing cause tuning instability?  

 

Ms. Kirk.

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