[pianotech] Pitch Change (was: Grey market pianos, seasoned pianos, etc.)

[Gerald Groot]

It does not take much swelling for a key to stick, for a hammer shank to
warp, or for a window to stick shut.  It does not take as much swelling as
one may think for a pianos pitch or tuning to change either.  If it did,
tuning and pitch would not change nearly as much as it does.  

Jer

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Saturday, April 03, 2010 10:55 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pitch Change (was: Grey market pianos, seasoned
pianos, etc.)

Gerald Groot wrote:
> I have read what has already been written in this thread, currently.  Ron,
> I'm not going to sift through the archives.  The dissusion has been and
> still is being presented now.  I'm merely adding to it as you are giving
my
> current thoughts on the matter again, as you are.      
> 
> Have YOU had the time to do all of these measurements yourself?  If so, I
> don't know how you managed to find it let alone have the patience for it.
I
> haven't nor do I have the desire to do so.  Taking measurements is not the
> only proof available.  When does logic and common sense ever come into
play
> here?  

It comes into play immediately when you find how much a 
soundboard has to move to produce the required tension 
changes. Yes, I've taken a whole lot of time trying to learn 
how things actually work, rather than assuming that what I was 
taught was correct. It used to be common sense that horse 
hairs in the rain barrel turned into worms. I take the time 
because I'm interested in learning something real.

Ron N