Hi James, Did you try with just the back cover first? At 05:26 PM 3/22/02 -0500, you wrote: >I have 2 studio Yamaha pianos that move around alot in pitch after I open >them and I suspect the DC system. On one, I removed the dehumidifier bar >and installed rear bars and a cover leaving the humidifier section inside >the piano. It tunes like a champ now. > >James > >----- Original Message ----- >From: "Charles Neuman" <piano@charlesneuman.net> >To: <pianotech@ptg.org> >Sent: Thursday, March 21, 2002 11:53 PM >Subject: tuning with Dampp-Chaser > > >> Any strategies on tuning when there is a D-C installed? >> >> When I open the piano, the humidity starts to change. After a while this >> affects notes I've already tuned. >> >> In my case, the humidity near the action of my vertical changes from 42% >> to 36%. After a half hour or so of practicing setting a temperament, my >> first notes have drifted a bit from where they were. I assume the humidity >> change is the problem, but I suppose it could be how I set the notes. >> >> Do people run into this problem? If so, would you recommend leaving the >> piano open for a while before tuning? >> >> Charles Neuman >> >> > > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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