No, I didn't think of trying that. I will try it on my next problem piano. Thanks, James ----- Original Message ----- From: "Don" <pianotuna@accesscomm.ca> To: <pianotech@ptg.org> Sent: Friday, March 22, 2002 8:02 PM Subject: Re: tuning with Dampp-Chaser > 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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