Maybe theoretically .... but I haven't observed this in my 15 or so years of tuning. It takes a lot higher to break a string, unless it's just ready to break. (For various reasons: weakened at the capo area, or becket, etc.) When a piano is restrung, doesn't it get chipped to well above A440? I remember someone from Kawai (I think D. Mannino) saying their pianos are tuned to either A443 or A444 before they are shipped to the USA. Anyways, I don't yet see how a little overshoot contributes to string breakage. Yeah, I see the theoretical possibility of it since the pitch is slightly higher, but don't observe it in real life. -- JF On Wed, Feb 2, 2011 at 2:07 AM, David Love <davidlovepianos at comcast.net>wrote: > Overshooting means that you increase the tension in the first segment of > the > string (the segment leaving the tuning pin) to the first friction point > before the speaking length moves. If you have a piano with a rendering > problem and the friction points don’t release quickly, then you can easily > increase the tension in that first short segment past the break point and > the string will break. If you tune with counter pressure applied to the > tuning lever that compensates for the twisting of the pin, you can move the > pin in the block without increasing the tension in that first section, no > overshoot. The risk of exceeding the break point then is minimized. > > David Love > www.davidlovepianos.com > > Overshooting also, in my opinion, increases the likelihood of string > breakage, especially on pianos that render poorly. > > > How so? From the higher pitch? > > > -- > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110202/3b2cf9fc/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC