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<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>You
mention "there is felt there..." Bob, but perhaps there isn't enough
counter-bearing (upwards deflection) to terminate the string at the
aggraffe.</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>If a
bass-string core is rattling within the aggraffe, it will rattle in time =
with
the (visible) oscillation of the string.</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>If
there is little or no upward deflection (of the string) from the =
aggraffe to the
front string-rest, try increasing (shimming) the counter-bearing =
with a
thick cardboard punching or #6 bridge pin under the string, at the
string-rest.</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>I'm
guessing the piano was re-strung and the replacement string-rest felt is =
too
thin?.</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>Otherwise, if worn aggraffes are the source of noise, they =
will
likely render poorly, and make a "ticking" sound as you try tune. =
This is
common enough, and best dealt with when preparing to
re-string.</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>good
luck!</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>Mark
Cramer,</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>Brandon University</FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2> </FONT></SPAN></DIV>
<DIV><SPAN class=630364219-13092004><FONT face=Arial color=#0000ff =
size=2>PS If
faculty makes you nervous while you work, go audit one of their =
classes
sometime! ;>) </FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> =
caut-bounces@ptg.org
[mailto:caut-bounces@ptg.org]<B>On Behalf Of </B>Robert
Callaghan<BR><B>Sent:</B> Monday, September 13, 2004 11:26 =
AM<BR><B>To:</B>
caut@ptg.org<BR><B>Subject:</B> [CAUT] Agraffe =
noise<BR><BR></FONT></DIV>Dear
List,
<P>I just started at the local college. There is one grand piano =
there
where many plain wire strings and a few bass have a very loud hiss or
sizzle. If is was a bass string you'd think the copper wrap was =
loose,
but twisting the string didn't help. It is the worst case of =
this I've
ever seen.
<P>The piano has signs of being worked on. Beside pieces of felt =
stuck
here and there trying to get rid of the zinging, there are =
Pin-Tite
stains on the plate and rock hard, overly lacquered hammers. On =
other
pianos I've had good luck tugging upwards on the string, or cleaning =
out the
hole in the agraffe. But that hasn't helped in this case. =
If I
push down firmly on the string on the tuning pin side of the agraffe =
it
stops. There is felt there so it isn't a vibrating string. =
In my
research I found a <I>Journal </I>article that mentions that maybe the =
agraffe
itself is loose.
<P>I wanted to run this by you all before I began testing this theory, =
or
perhaps someone knows exactly what the problem actually is. (And =
because
I have the piano faculty looking over my shoulder I want to be =
right the
first time!)
<P>Thanks for any insights.
<P>Bob Callaghan </P></BLOCKQUOTE></BODY></HTML>