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<DIV><FONT face=Arial size=2>Hello Jean-Luc</FONT></DIV>
<DIV><FONT face=Arial size=2>you said:</FONT></DIV>
<DIV><FONT face=Arial size=2>"<FONT face="Times New Roman" =
size=3> You
say for a piano that's a half step flat you set the =
A=445 . Then
what would you do if the piano is 50 cents flat of your target
"</FONT></FONT></DIV>
<DIV>You have to "play all this by ear" as it were. The <EM>object</EM> =
of this
system is to spread the load equally over the whole piano at all times - =
rather
than tensioning it up chromatically. So view your specimen piano with a
jaundiced eye and tell it "I'm going to get you to pitch" ;-)</DIV>
<DIV>The ETD I use for this exercise is a cheapo one with a meter =
calibrated +
or - 50cents. This will tell you how much the piano is flat. Then I set =
the
meter to Zero on A=446, or 445, or whatever, and go on from =
there. For
each 10 cents the piano is flat I raise the first quadrant 1 =
Hz. So if
the piano is 60 cents flat I start my 8ves. at 446Hz. then fill in with =
the
quadrants (by ear and 8ves) then go down a whole tone to the next =
quadrant and
do that in the same way but this time to, say, 445. Next I go up a
tone-and-a-half and that would be 443 Then finally down a =
tone to
the last quadrant and tension it up to 441. Do you see what I'm doing =
here?
Start on the B quadrant, then the A quadrant then the A# quadrant and =
finally
the G# quadrant. Point is, obviously you tension up the whole note - all =
three,
or two, or single strings, otherwise the system becomes incredibly =
cumbersome.
You only need one wedge for all of this. And you use the ETD on all 8ves =
throughout the range of the piano. This gives you that all-important =
"outside
reference" not being affected by the changes in tension within the =
piano. What
more can I say? I developed the system. It works (at least it does for =
me) and
it'll work for you too.</DIV>
<DIV>Regards</DIV>
<DIV>Michael G (UK)</DIV></BODY></HTML>