[pianotech] Soundboard deflection - Pitch raise

David Nereson da88ve at gmail.com
Wed Aug 5 12:48:19 MDT 2009




> Ryan Sowers wrote:
>> Its times like this that I wish PTG had a research and 
>> development department to answer some of these basic 
>> questions once and for all!
>
> We're it, all of us. And it doesn't seem to matter how many 
> times it's gone over, the answer is STILL not what we were 
> taught to believe, so that can't be it.


Right.  I'm wondering if anybody really knows anything. 
Couldn't you put a metal bar across the top of the rim of a 
grand, then a vertical bar hanging down from it, with a dial 
indicator touching the soundboard such that it would track any 
rises and falls of the board?  Then take readings every week, 
also noting any pitch changes, and see what's going on?  I'm 
surprised nobody's done this yet.  Or have they?  ("They can put 
a man on the moon, but . . . . ")
    --David Nereson, RPT 



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