Hi Ron, No I studied this and discovered a yawing effect especially just above the break in verticals, similar to the effect you get when trying to raise pitch on the old Yamaha electric grands w/2 string unisons that used the Ceramic pickup as a bridge. Nasty little pians to raise pitch on. I actually had center strings that I set at pitch with several hard blows, pull sharp after raising the corresponding outer string and found I had to find a balance point in order to get both at pitch. On 8/10/07, Ron Nossaman <rnossaman at cox.net> wrote: > > > > One more nugget of info I have been tuning for a Kawai dealer for over > > 20 years, about a 15 or so years ago Kawai began getting complaints > > about string tarnishing, they'd turn black or dark rather quickly. Then > > it stopped but I noticed a change in the way they tuned. If a pitch > > raise of anything approaching 25 cents was necessary I noticed the > > phenomonen of the strings slipping around the hitchpin! > > I don't think so. Rendering through the bridge, yes. Yamahas > do this too. One good whack after it's pulled up will do it, > and the string will drop a couple of beats. It's not happening > at the hitch, because you can quietly pull up both sides of a > shared hitch, and when you whack it, both sides drop in pitch. > I think it's the bridge. It happens in the capo sections, > where speaking lengths are getting short. > > I've run into this often enough following "soft" tuners who > swear you can tune quietly with good stability with the right > hammer technique. I've followed them as little as a week after > their tuning, because it needed it. > > Ron N > -- Michael Magness Magness Piano Service 608-786-4404 www.IFixPianos.com email mike at ifixpianos.com -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070810/accdc401/attachment-0001.html
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