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<DIV><FONT face=Arial size=2> Thats good, I want to know the =
tension per cent . That is a good constant, useful for many
applications. </FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=thetuner@ivories52.com =
href="mailto:thetuner@ivories52.com">Geoff
Sykes</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">'Pianotech'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, December 20, =
2005 5:44
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: How to explain a =
pitch
adjustment</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=265294222-20122005><FONT face=Arial =
color=#0000ff size=2>That
raises an interesting diversionary question. What's the amount of =
tension per cent? How many cents of change, over the entire =
piano, would
create a ton of tension change?</FONT></SPAN></DIV>
<DIV><SPAN class=265294222-20122005><FONT face=Arial =
color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=265294222-20122005><FONT face=Arial =
color=#0000ff size=2>--
Geoff</FONT></SPAN></DIV>
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<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr =
align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> <A =
=
href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</A>
[mailto:pianotech-bounces@ptg.org] <B>On Behalf Of </B>Cy
Shuster<BR><B>Sent:</B> Tuesday, December 20, 2005 2:24 =
PM<BR><B>To:</B>
Pianotech<BR><B>Subject:</B> Re: How to explain a pitch
adjustment<BR><BR></FONT></DIV>
<DIV><FONT size=2>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 about what work is needed. The graph indicates =
"fine
tuning" range (+/1 eight cents for me).</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The analogy I use is sanding: if wood is very =
rough, you
can't start with the 1000-grit paper; multiple passes are =
required.
Same thing for painting: with regular maintenance, one coat covers,
otherwise you may need several.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>A description of the forces involved helps: 15 =
to 20 tons
of tension overall; a pitch raise can add a ton of tension (right?), =
yet a
fine tuning requires < 1% accuracy. No wonder it doesn't
last!</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>--Cy--</FONT></DIV>
<DIV> </DIV>
<DIV><FONT =
size=2></FONT> </DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>