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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>When I was a strict aural tuner (or when I
on occasion decide to tune a piano the “old fashioned way”) I used
the CM3 method and to be honest never measured or concerned myself with the
degree of accuracy or cents deviations. The benefit of using the CM3
technique is that it accommodates the changing octave stretch requirements of
different pianos so the width of the intervals will necessarily change from
piano to piano. Aural tuning in this respect is more art than science and
I wouldn’t get bogged down by potential variations in the cents deviation
of the original ladder. If the problem is big enough it will become
evident as you fill in the other notes. </span></font></p>
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<p><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt;
color:navy'>David</span></font><font size=2 color=navy><span
style='font-size:10.0pt;color:navy'> Love</span></font><font size=2
color=navy><span style='font-size:10.0pt;color:navy'><br>
davidlovepianos@comcast.net<br>
www.davidlovepianos.com</span></font><font color=navy><span style='color:navy'>
</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> pianotech-bounces@ptg.org
[mailto:pianotech-bounces@ptg.org] <b><span style='font-weight:bold'>On Behalf
Of </span></b>Jeff Deutschle<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, October 24, 2008
4:26 AM<br>
<b><span style='font-weight:bold'>To:</span></b> pianotech@ptg.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Contiguous Major Thirds
Accuracy?</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>List:</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>There are many posts in the archives saying that
a ladder of CM3s (Contiguous Major Thirds) is very accurate, but nobody has
says <em><i><font face="Times New Roman">how</font></i></em> accurate.</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>I am hoping that some of the members of this list
could say how accurately, in tenths of cents, they are able to set a ladder of
CM3s aurally before any other notes are tuned for other checks.</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Please don't think I am trying to start a fight. When
I set a ladder of CM3s, I am never sure that each note is <em><i><font
face="Times New Roman">exactly</font></i></em> where it ought to be. And when I
do the math, it seems that there could be errors of 1.5 cents and still have
progressively beating M3s, although they might not sound evenly progressive or
have a 4:5 beat ratio. I am wondering how accurate they are usually tuned by an
experienced tuner.</span></font></p>
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style='font-size:12.0pt'> </span></font></p>
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<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>-- <br>
Regards, <br>
Jeff Deutschle<br>
<br>
Please address replies to the List. Do not E-mail me privately. Thank You.</span></font></p>
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