<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>When I did this I set a two octave temperament: A2 – A4.  I tuned the two octaves (plus the double octave) the way I thought they needed to be tuned to sound clean usually a 4:2 octave from A3 – A4 slightly wide and a 6:3 octave A2 – A3 slightly whatever I needed to get the A2 – A4 double octave clean but slightly wide.  I never thought about it exactly, just did it until I was satisfied.  Then I filled in the bearings of contiguous thirds and played around with the four notes (2 C#s and 2 Fs) until they all sounded like 4:5 ratios.  It was more of a feel thing than an effort to count it.  This is art stuff, closeyoureyesandlistenlettheforcebewithyou.  As you fill in the rest of the temperament you may run into a problem catching it with your various checks and have to fudge things a little.  Depending on what you find you can figure out which note, notes or sometimes the width of the octave that needs to be changed.  To be honest, that’s why I went to using a machine, at least to set temperaments.  So much easier, faster and probably more consistent.  I spent too much time playing around with it to get it just so and the machine was just more efficient.  I still use checks as I tune the octaves going out from the center and I think that’s important because many (if not most) pianos will require some modifications to the calculated tuning curve somewhere.  It’s important to catch those, I think, so I throw in few quick checks as I’m going but they’re all things I can reach with one hand (fortunately, I can easily reach a tenth).  Best of both worlds, as I see it.  This has been discussed endlessly on the list and I would search the archives thoroughly going back several years as people have outlined their specific methods for both aural and combo styles.  </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <div> <p><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt; color:navy'>David Love<br> davidlovepianos@comcast.net<br> www.davidlovepianos.com</span></font><font color=navy><span style='color:navy'> </span></font></p> </div> <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> Monday, October 27, 2008 4:35 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> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>List:</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Thank you all for the replies, including the entertaining ones.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>I sometimes think the difference between a good piano tuning and a poor one is the same difference between a good haircut and a poor one ... a couple of weeks.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>I was hoping some "hybrid" tuner had measured how accurately they can set the thirds aurally by checking with an ETD. I have not found it in the archives.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>D.L:</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Yes if there is a problem with the original CM3's it will show up as more notes are tuned. Then the question arises as to which third (or both) is wrong or is the problem due to a difficult break?</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>J.F:</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>You mention the importance of identical octave widths when tuning CM3's. Would this mean that if octave widths are tuned differently to compromise for a challenging break, that CM3's cannot be used?</span></font></p> </div> <div> <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> -- <br> Regards, <br> Jeff Deutschle<br> <br> Please address replies to the List. Do not E-mail me privately. Thank You.</span></font></p> </div> </div> </body> </html>