Terry, Your method is easier and will work. Splitting it up like I suggested distributes the tension change more evenly for those afraid of too much change in one area. Norm Barrett Terry Farrell wrote: > On a piano that is a couple hundred cents flat I would simply ETD tune > from A0 to C8 and overshoot A440 in the bass by maybe 10 cents, the > tenor 20 cents and the treble 30 cents or so (assuming the piano was > in pretty good shape - less overpull if any concerns). A second pass > would be a small pitch raise. > > What advantage does your approach of all A's, then A#'s, then B's, > etc. have? Or is it that you simply feel there is less chance of > breaking the plate? > > FWIW, I've used my method oodles of time on pianos that were two and > three hundred cents flat with no trouble. Sure is a lot easier to keep > track of where you are and where you have been..... > > Terry Farrell > > On Aug 18, 2009, at 11:27 PM, Norm Barrett wrote: > >> Let me throw out a method for pitch raising a piano that flat for >> consideration. >> 1. Load your ETD with an average tuning and set the tuning offset >> +20 cents. Now tune all the A's to the pitch indicated by the machine. >> 2. Lower the offset by 5 cents and tune all the A#'s >> 3. Lower the offset by 5 cents and tune all the Bs. >> >> Continue in this manner until all the notes on the piano have been >> pulled up. This will be the most drastic tension change. >> >> Set the machine in pitch raise mode and run through the piano from A0 >> to C8. >> The piano should now be close enough to proper tension to do a fairly >> good fine tuning. I have used this sequence successfully for very >> flat pianos and it worked for me. >> >> Norm Barrett >> >> >> Michael Magness wrote: >>> >>> Hi All, >>> I came across an old, 1925, Gulbranson upright an ex-player with a >>> 3/4 plate that was extremly flat today. I tried to sample the a's >>> with my Cyber tuner but they wouldn't read so I kept trying >>> different notes, finally the C's worked and registered as A's. >>> I used the pitch raise feature to raise the bass and lower tenor >>> then used my temperment strips to strip the piano all the way to the >>> top and tuned the center strings by ear using octaves then tuned the >>> unisons pulling the strips out one string at a time. >>> I then re-set the Cyber tuner to the smart tune feature and re-tuned >>> the bass and tenor. >>> As I was tuning A3 the Cybertuner showed the original pitch of that >>> note to have been -179c and others around it in that general range >>> 170's and 160's >>> No strings broke although they were rusty looking, I finally found a >>> use for that Protek I've been hauling around, I used a q-tip and put >>> some Protek on the strings at the pressure bar and v-bar. >>> I'm scheduled to go back next week to re-tune it and again a couple >>> of weeks after that. >>> I've done full tone pitch raises but never one this bad! >>> Mike >>> -- >>> I intend to live forever. So far, so good. >>> Steven Wright >>> >>> >>> Michael Magness >>> Magness Piano Service >>> 608-786-4404 >>> www.IFixPianos.com <http://www.IFixPianos.com> >>> email mike at ifixpianos.com <mailto:mike at ifixpianos.com> > >
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