Yamaha has at least used 2 different scales for the wound string section and who knows how many changes in the treble section. James James Grebe Piano Tuning & Repair Member of M.P.T. R.P.T. of the P.T.G. for over 30 years. "Member of the Year" in 1989 Creator of Handsome Hardwood Caster Cups, Piano Benches, Writing Instruments (314) 845-8282 1526 Raspberry Lane Arnold, MO 63010 BECOME WHAT YOU BELIEVE! pianoman@accessus.net ----- Original Message ----- From: "Ron Nossaman" <rnossaman@cox.net> To: "Pianotech" <Pianotech@ptg.org>; <caut@ptg.org> Sent: Friday, January 20, 2006 10:30 PM Subject: P22 scale > > Having spent the last two days tuning mostly Yamaha P22s at around 25%RH, > from 70%+ RH just a few months ago, I have a request. Has anyone out there > ever taken complete scale data on a P22 that they would be willing to send > me? I'm curious how tension and break% profiles correspond to the pitch > change patterns I see in these pianos, and I haven't yet had occasion or > opportunity to take the measurements. > > Looking for data to compare to observed reaction, for educational > purposes. > > Ron N > _______________________________________________ > Pianotech list info: https://www.moypiano.com/resources/#archives >
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