Has anyone seen what seems to be a different kind of string on lesser expensive pianos? It could be scaling issues but I swear the string seems "softer". These are newer pianos, many Asian. I guess they're not really meant for serious playing. I thought it might be a cost reducing measure. Laura On Sep 8, 2011, at 7:32 AM, Mike Spalding wrote: > On 9/7/2011 7:01 PM, Joseph Garrett wrote: >> From: Mike Spalding<mike.spalding1 at frontier.com> >> Mike said: "To: Pianotech<pianotech at ptg.org> >> Subject: [pianotech] petrof grand breaking strings >> Message-ID:<4E67DE17.4020606 at frontier.com> >> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >> >> A non-computerized colleague has asked me to post this question: A >> 3-year old Petrof grand, 5' 8", is experiencing string breakage in the >> capo section, which in this piano extends from the top of the agraffed >> tenor all the way to note 88. It is played several hours per day by a >> gifted 12-year-old boy. He is normal size for his age. The tech has >> filed hammers and increased let-off, but it continues to break strings. >> He has considered rounding off the v-bar, which he has observed (with a >> mirror) to be quite narrow and sharp. Question: is this model >> particularly prone to breaking strings? How would you attack this problem? >> >> thanks," >> >> Mike, >> I would first take the scale and evaluate the tension/breaking strength >> situation. Once I did that I'd probably re-contour the Capo Bar and smooth >> it. If that didn't take care of it, I'd just restring the areas in >> question. As for the regulation, I've found that if the piano is in good >> regulation and the hammers are properly surfaced, (er......"shaped"...hate >> that term!), to the proper contact shape, The breaking string problem goes >> away. Exceptions to that are Southern Baptist Situations w/o a proper >> Monitor for the pianist. I'd also ask what kind of music is being played >> and ask when the last time the musician had a hearing evaluation.<G> >> That's my take on that. >> Joe >> >> >> Joe Garrett, R.P.T. >> Captain of the Tool Police >> Squares R I >> > Joe, > > Thanks for your input. I passed your recommendations along to my colleague; hopefully he'll be able to resolve this problem. > > Mike
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