Humidity Change and Unisons

Roger Jolly baldyam@sk.sympatico.ca
Sat, 19 Aug 2000 18:55:49 -0600


Prof. Jim,
            Do you have this more fully explained in your book, hopefully
with pictures, I'm kind of slow to catch on.
  Maybe I should invest in your 101 coarse.  Florida in Febuary sounds
attractive.

Roger

>CASTERS!!!????
>Of course not!!
> Anyone with common sense knows it is the little brass knobs on the fall 
>board.......they absorb moisture, and thus gain weight,...this in turn
places 
>more strain on the fallboard hangers, which being fastened firmly to the rim 
>causes the rim to tilt inward ...which squeezes the fallboard and thus 
>applies more crowning moment to the board/bridges..thus causing the
sharpness 
>observed................Now, this is piano 101 stuff guys, don't fail to
take 
>it into consideration the next time it comes up!! :-)
>Jim Bryant (FL)
> 
Roger Jolly
Saskatoon, Canada.
306-665-0213
Fax 652-0505


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