How to explain a pitch adjustment

[David Ilvedson]

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The analogy I use is painting a wall.   To paint a purple wall white, y=
ou need to give it at least 2 coats...a primer and then the top coat.

David Ilvedson, RPT
Pacifica, California





Original message
From: "Alan Barnard" 
To: Pianotech 
Received: 12/20/2005 3:47:56 PM
Subject: Re: How to explain a pitch adjustment


Wow, Cy, that's some good stuff!
 
Evidently you are not as stupid as I look.
 
Alan Barnard
Salem, Missouri
 
 
----- Original Message ----- 
From: Cy Shuster 
To: Pianotech
Sent: 12/20/2005 4:24:36 PM 
Subject: Re: How to explain a pitch adjustment


I measure pitch on all the A's before I start, and record this for the =
customer on a graph on the invoice.  This gives them a great visual abo=
ut what work is needed.  The graph indicates "fine tuning" range (+/1 e=
ight cents for me).
 
The analogy I use is sanding: if wood is very rough, you can't start wi=
th the 1000-grit paper; multiple passes are required.  Same thing for p=
ainting: with regular maintenance, one coat covers, otherwise you may n=
eed several.
 
A description of the forces involved helps: 15 to 20 tons of tension ov=
erall; a pitch raise can add a ton of tension (right?), yet a fine tuni=
ng requires < 1% accuracy.  No wonder it doesn't last!
 
--Cy--
 
 

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