GH-1 Tone problem

[Mary Smith]

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Hi Danny,

I'm with you on exploring any and all voicing possibilities before doing 
something radical like changing string scale. The Yamaha GH-1 is a 
particularly problematic piano, and I have yet to hear one that "works" at 
the tenor break. I think it is a weak spot in the scale design. There may 
be other design flaws as well, which I would be interested to hear about, 
if anyone has thoughts about it.

Mary Smith


At 05:57 PM 7/20/2003 -0500, you wrote:
>
>Mary,
>
>This is just a thought, but after tapping down the string once again at 
>the hitch pin, "lightly" at bridge pins, making sure the string is NOT in 
>a groove on the bridge / capo bar, etc.,  then try resurfacing the hammer 
>of the problem note, voice the shoulders  with a single needle 2 times on 
>each side, forward & back sides, then  "sugar-coat"  (as Ron Neblett calls 
>it)  the hammer right on the two edges (top side) with no more than 2mm 
>penetration starting halfway up one side, around the top, and down halfway 
>the other side.   Voicing the hammer this way does something physically to 
>the string to vibrate it in a different way eliminating a lot of 
>the  "weird" sounds you describe coming out of the piano you are trying to 
>tune.
>         Strange as it may sound, I had a (somewhat) similar problem with 
> a Kawai KG-3E at the Jr. College I tune/repair for that Don Mannino and 
> Ron Neblett (whom I talked to about the problem) both recommended this 
> process.   And ,  IT WORKED !!   I did not rescale or change out a 
> string(s) thinking it was no good, etc.
>         IF after going all through this process and the "weird" tones 
> persist, then string replacement/scaling, may help.   However, I'd go 
> through the WHOLE piano to make sure loose screws, "minor" soundboard 
> cracks, loose debris, etc is still NOT a problem in causing some kind of 
> frequency vibrations.
>         It's just a though and I hope (maybe) I help you remember to do 
> something you may have already known to do.
>
>Danny Tassin, RPT
>Jackson State Comm. College
><mailto:DLTassinpiano@juno.com>DLTassinpiano@juno.com
>


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