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<DIV>Yesterday there was a note on the piano of one of the piano profs' D, (=
"key
rubs when holding down Db6 and playing C5) Upon inspection, I noticed =
the
back checks were rubbing against each other. I wrote the following to the
professor. </DIV>
<DIV> </DIV>
<DIV><BR> <BR>> The problem with the keys you pointed out was the Dd=
back check was<BR>> rubbing <BR>> against the C back check, but =
only
when the Db was depressed. When I<BR>> had the <BR>> action out,=
I
noticed several other back checks that were almost<BR>> rubbing <BR>>
against their neighbors. There was one similarity with all the
ones<BR>> that were <BR>> close to their neighbors. They all
belonged to a black key. Then I<BR>> looked at the <BR>> front of =
;
the key, and noticed they were very close to the white key.<BR>>
<BR>> <BR>> This is caused by playing glissandos on the black ke=
ys.
It has always<BR>> been <BR>> advised for piano players not to p=
lay
glissando on the black keys.<BR>> Primarily <BR>> because the ke=
y
button can't take the strain, but also because it<BR>> does cause <BR>>=
;
the key to move over, and thus create this problem. <BR>>
<BR>> Now, if you are not playing glissando on the black key, I wonder
if<BR>> perhaps <BR>> when you play a glissando on the white key=
,
your fingers rub against <BR>> the <BR>> black keys, causing them to m=
ove
over. <BR>> <BR></DIV>
<DIV>His response was:</DIV>
<DIV> </DIV>
<DIV>Wim,<BR><BR>"I rarely play glissandos."<BR></DIV>
<DIV> </DIV>
<DIV>My question to you guys is this. Have any of you experienced this, and =
what
solution do you have? This is a 45 year old D, with the original action. </D=
IV>
<DIV> </DIV>
<DIV>His other comment was:</DIV>
<DIV> </DIV>
<DIV>"Perhaps the technicians guild needs to take this matter up with the
<BR>composers guild, particularly the branch that deals with dead
<BR>composers. Debussy and Ravel were noted for their transgressions i=
nto
<BR>glissandi."<BR><BR></DIV>
<DIV>Any takers for an ad hoc committee to investigate this problem and make=
recommendations?<IMG src="http://cdn-cf.aol.com/se/smi/0201d20638/02"></DI=
V>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Wim</DIV>
<DIV><FONT lang=0 face=Arial size=2 FAMILY="SANSSERIF" PTSIZE="10"=
>Willem Blees,
RPT<BR>Piano Tuner/Technician<BR>School of Music<BR>University of
Alabama<BR>Tuscaloosa, AL USA</FONT></DIV></FONT></BODY></HTML>