I got a catalog from Pianotek with a string stretching/seating tool. It sits on the keybed and pushes up from below. I've seen it before but theirs is really nice. David I. ----- Original message ----------------------------------------> From: Fred Sturm <fssturm@unm.edu> To: College and University Technicians <caut@ptg.org> Received: Wed, 31 Mar 2004 12:44:43 -0700 Subject: RE: Tuning stability >--On Monday, March 29, 2004 11:09 PM +0200 Isaac OLEG <oleg-i@noos.fr> >wrote: >> Fred, I believe that if you warm the string rubbing them with a piece >> of wood , you'll get a very fast stabilisation, and you can avoid to >> bend them, bend can take place later I guess, is not it better? >Isaac, > My experience tells me that I should make the positive bends in the wire >soon after installing it for two reasons: > First, this will stabilize pitch faster. My sense is that the process of >the wire "making the bends itself" over time is a very large proportion of >the cause for pitch drop of new wire. On new pianos from the factory, for >instance, I find that heavy pounding can drop pitch by 50 cents or more. >Not true of pianos I have restrung and made those positive bends. I >interpret that to mean that the pounding is largely helping to create those >bends. > Second, the tone becomes much clearer, with a less "fuzzy" pitch. This >difference is pretty readily apparent. Pull to pitch without making bends >and listen. Make bends and pull to pitch, and listen. > I do like to make sure pitch is as close to standard as possible when >making the bends. Hence, 25 cents sharp before making the bends from bridge >to hitch pin. Making the bends lowers pitch by 25 cents or a bit more. So I >pull sharp again before making the front bends, which leaves the string >close to pitch. >Regards, >Fred Sturm >University of New Mexico >_______________________________________________ >caut list info: https://www.moypiano.com/resources/#archives
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