<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)">  <style>  </style>  </head> <body bgcolor=white lang=EN-US link=blue vlink="#000000"> <div class=Section1> Robert,<o:p></o:p> <o:p> </o:p> Every piano is different but you are on the right track.  It’s hard to put in words for every situation, and I think in beats, because I am from the old world.  I pull rather flat pianos 3 or four beats sharp and a fine grand I just get above pure before I start back down.  When I start back with the lever I like to have to use about a third of the amount of stress that it would take to move the pin in the block.  Is that hard to imagine.  I think it makes sense, but after 34 years it is so second nature that explaining it still takes some thinking.<o:p></o:p> <o:p> </o:p> William<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <div> PIANO BOUTIQUE<o:p></o:p> William Benjamin<o:p></o:p> Piano Tuner Extraordinaire<o:p></o:p> <a href="http://www.pianoboutique.biz">www.pianoboutique.biz</a><o:p></o:p> The tuner alone,<o:p></o:p> preserves the tone.<o:p></o:p>  <o:p></o:p> </div> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Robert Finley Sent: Friday, June 09, 2006 2:22 PM To: pianotech@ptg.org Subject: Question about Setting the Pins and Unison Stability<o:p></o:p> </div> <o:p> </o:p> <div> One of the problems I have been trying to solve is how to improve my unisons so that they stay in tune longer and don't go out shortly after I have tuned the piano. I apply firm test blows to equalize the tension along the string, but find that the some of the unisons in the treble still go out of tune within a few days or weeks afterwards. I think the problem is due to not setting the pin properly. The question I have is, during unison tuning, and when you are tuning each outer string to the center string, do you turn the tuning lever to raise the pitch to the high side of the center string, to the point that you hear a "tinny sound" when the two frequencies are different, and then turn the tuning lever to bring the pitch back down so that it sounds pure? I read somewhere that the amount the strings should be raised before bringing it down is to the point that you can hear a beat of a few Hz, but raising the pitch to the point where you hear a tinny sound is more than a few Hz. Thank you for your advice. <o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Robert Finley<o:p></o:p> </div> </div> </body> </html>