I strongly suspect that this is the case: That, all other things being equal, the deader a soundboard is, the more stable the tuning will be.<br> <br> <div>Alan Eder<br> <br> -----Original Message-----<br> From: Farrell <mfarrel2@tampabay.rr.com><br> To: Pianotech List <pianotech@ptg.org><br> Sent: Sat, 22 Mar 2008 9:08 am<br> Subject: Re: birdcage pitch?<br> <br> <div id="AOLMsgPart_2_a6c166f6-dc75-4a88-8fb7-c0e15bb65d01"> <div><font face="Arial" size="3">That´s pretty unusual. Is it possible that there is a relation between the stability and these 7 passes?</font></div> <div><font face="Arial" size="3"></font> </div> <div><font face="Arial" size="3">My guess is not. I raised the pitch of an old upright Kimball more than 100 cents (don't remember exactly how much) about six years ago. One year ago I returned to tune it again (only needs tuning every 5 years) and it was right up to A440. I think </font><font><span class="Apple-style-span" style="font-size: large;"><span class="Apple-style-span" style="font-family: impact, sans-serif;">a big ol' flat, dead soundboard</span></span></font><font face="Arial" size="3"> has more to do with it than how many passes one uses to get a piano up to pitch.</font></div> <div><font face="Arial" size="3"></font> </div> <div><font face="Arial" size="3">Terry Farrell</font></div> </div>  </div> <div id='u8CA5C05468EF904-230-13AB' class='aol_ad_footer'><FONT style="color: black; font: normal 10pt ARIAL, SAN-SERIF;"><HR style="MARGIN-TOP: 10px">Planning your summer road trip? Check out <A title="http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000015" href="http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000015" target="_blank">AOL Travel Guides</A>.</FONT> </div>