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<DIV><FONT size=2>Perhaps this illustrates the potential problems that =
can arise
when scaling philosophies put tuning considerations above tonal
considerations. Smooth inharmonicity charts may not always produce =
optimum
tone. That being said, I have had good luck using Sanderson's =
rescaling
and had a pleasant relationship with them. None of their scales, =
however,
have made changes quite as large as those you suggest. More often =
there
have been small refinements in gauge switches in the low tenor and =
some
switches to higher gauges in the upper two sections.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>David Love</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=Erwinspiano@AOL.COM
href="mailto:Erwinspiano@AOL.COM">Erwinspiano@AOL.COM</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> November 29, 2001 6:54 =
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> sanderson Bass
strings/scale</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT size=2>
<BR> List <BR>
<BR> Had an interesting and perplexing =
experience
recently, I installed a new board for a very well known S.F. area
tech/rebuilder. This piano was a stwy o. I set up the board,bearing =
and plate
and they did the stringing. <BR> After the =
piano was
strung he called and expressed some disappointment with the sustain =
which I
found strange because that is not usually an issue with properly set =
up rib
crowned boards. He went on to say that they were working on two "os" =
at the
same time. the other "o" had the original board. When I asked him =
where the
sustain problems were he said all over. That was a giant clue because =
as you
all know stwys do not have sustain problems IN the bass even if the =
board
looks like a venetian blind. It was also the same complaint on the =
other "o"
<BR> <BR> He then =
stated that
both pianos were strung with the same bass strings and both pianos =
received an
unoriginal string scaling designed by Sandersons. He said that the =
original
board "o"sounded much better before it was torn down than it did at =
present.
<BR> Having too much tension in a bass scale =
will choke
the sustain in any piano. Having too much tension in the bass or =
treble
cannot only change the tone color but choke it as well. =
<BR> When I
spoke at length with his shop foreman he said that the wire size on =
noter 88
had gone from a no.13 to a 14 size wire. That's a huge jump in =
tension. The 2
top trebles apparently received this same whole size increase and was =
the most
choked in both pianos. <BR> I explained to them , as Del =
and Rons
have stated many times, that a rib scale is designed for a particular =
string
scale. Yes, it is possible to make string scale changes on an existing =
board.
Many of us have done it but, if the tension changes are too great the =
tone and
sustain will be altered in a negative way ,ask me how I know. =
Scaling is
a wonderful tool but some times it's better not to mess with =
success and
the stwy O doesn't , I.M.H.O.,need drastic changes in the stringing
scale. <BR> In stwys capstan lines float =
because the
block placement does and so does the bridge placement. If the =
length of
note 88 is measured on several different models say 6 different "Os" =
the
string length often be quite short and vary by as much as 1/4".(This =
is also
true of other stwy models) These less than 2" speaking lengths reduce =
tension
and therefore volume especially in the top octaves. I have been =
routinely
rotating the top of the bridge back when installing a new board to =
accommodate
a speaking length of 2". This small change makes a modest increase in =
tension
using the original scale and improves power and projection in the top =
octave
or so. <BR>All that to say that changing to higher scale tension =
in this
case had a compounding negative consequence because of the excessive =
tension
of the new Sanderson scale. <BR> Anyway a cut =
to the
chase. The client restrung both "o"s with mapes Bass strings and =
original
scales. The sustain , power and sonority returned . From what I
understand the client had a discussion with Dave S. who was =
Quote rude
and unprofessional. He did however agree to refund his money for =
strings. But
wow the loss of time and labor cost. My client said that this was =
obviously
Not the first time that Mr. S. has received these complaints
<BR> Is this anybody else's experience?
<BR> </FONT> </FONT></BLOCKQUOTE></BODY></HTML>