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<DIV><FONT face=Arial size=2>Hi Fred,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks for the explanation. I'll take you
word for it, but I'll still have to give it a try to prove it to myself.
;-)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>This thread came up at an interesting time for me,
since I've been working on a S&S B that the owner complained of what you
would describe as "positive" feeling--or too much of it. So speaking in
terms of positive or not, is really helpful. This is the first time I've
had a pianist complain of such. </FONT><FONT face=Arial size=2> When
I went to pick up the action to rebush keys and make various repairs, the
pianist complained of heaviness in the action. I asked her to show me the notes
that were the worst, and to me, they were the notes that were regulated the
best. Well, that was a strange feeling...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><FONT face=Arial size=2>BTW, I adjust jacks
seated (or standing) by the ends of the action. I didn't know there
was any other way! In the bass, pressing down on the rep lever with my
left hand to see where the jack is, making the adjustment with my right.
After making the adjustment I release and have a second look to make sure
everything is where it should be. As I work, I flip up the
hammers to get them out of the way. It's easy to glance through the
action to see the tool going in for the correct screw. After getting
half way, I work from the treble end--yeah, my left hand has to use the tool,
but I can do it. Using an action caddy (I <STRONG>love</STRONG> that
thing!) makes this operation especially easy, minimizing the amount of time I
have to stand and lean over the action. It goes pretty
fast.</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks much!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Barbara Richmond, RPT</FONT></DIV>
<DIV><FONT face=Arial size=2>near Peoria, Illinois</DIV></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=fssturm@unm.edu href="mailto:fssturm@unm.edu">Fred Sturm</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org
href="mailto:caut@ptg.org">caut</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, August 10, 2007 6:55
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [CAUT] Black on Black...
(Jack alignment)</DIV>
<DIV><BR></DIV><FONT face=Verdana>On 8/9/07 4:07 PM, "Barbara Richmond" <<A
href="mailto:piano57@insightbb.com">piano57@insightbb.com</A>>
wrote:<BR><BR></FONT>
<BLOCKQUOTE><FONT size=2><FONT face=Arial>Well, this thread took an
interesting turn while I was away from home. <BR></FONT></FONT><FONT
face=Verdana><BR></FONT><FONT size=2><FONT face=Arial>Fred, tell me about
moving those jacks on a well-regulated/lubed piano. Is that "all" you
did? I mean, you couldn't just move 'em back and be done. I've never
tried it--you had to go through everything again (right?). I would be
interested in knowing what changes to aftertouch you might have had to make
as a result of it. Of course, I could go experiment on my piano...but
it's easier to ask. :) <BR></FONT></FONT><FONT
face=Verdana><BR></FONT><FONT size=2><FONT
face=Arial>Thanks,<BR></FONT></FONT><FONT face=Verdana><BR></FONT><FONT
size=2><FONT face=Arial>Barbara Richmond,
RPT<BR></FONT></FONT></BLOCKQUOTE><FONT face=Verdana><BR>Hi
Barbara,<BR> Actually, advancing jack alignment doesn’t
affect aftertouch. It does affect simultaneity of drop/jack tender contact a
bit. Why doesn’t it affect aftertouch? Well, though the tender will contact
the regulating button earlier, it will still get the jack to the point of
letoff at exactly the same point in key travel, and exactly the same relative
to the string. So you can actually nudge it (the jack line) back or forward a
bit without doing anything else if you want to, and not be caught by the
regulation police. <BR> Moving all the jacks less than
or maybe up to 1 mm will have a very minor affect on that letoff/jack
simultaneous touch, but I don’t think it is enough to really feel in
isolation. You can fool with all three - letoff, drop and alignment – to come
up with an effect, of more or less obvious feel of the letoff part of key
travel. Less drop and alignment forward makes for less obvious feel. So does
increasing letoff a tad and leaving the others the same. Increasing drop
and/or decreasing letoff means more positive feel, but with decreasing letoff
you decrease aftertouch, which partly negates the positive feel thing (more
aftertouch also means a more “positive feel).<BR> It’s
kind of a balancing act, but when you are in a pretty sweet spot, you can make
minor adjustments without really redoing everything. Does that answer your
question, or just make it more confusing?<BR>Regards,<BR>Fred
Sturm<BR>University of New Mexico <BR><BR></BLOCKQUOTE></FONT></BODY></HTML>