Jim, I 2nd the 'rendering problem' diagnosis.... Hate it when that happens... Dan Reed pianoarts at tx.rr.com On May 19, 2009, at 4:23 PM, Ron Nossaman wrote: > Jim Busby wrote: >> All, >> We have a 1992 Mason and Hamlin A that has had tuning stability >> problems for at least the last 8 years (since I’ve been here). It >> has been assigned to several solid tuners with the same outcome, so >> it’s not that. It has been restrung twice, and the last time I put >> in a new Nossaman pinblock and made sure that it was installed >> properly, mated to the flange, horn wedge is in place, yaddah, >> yaddah. >> The last restringing was 2 years ago, and I still need to tune it >> about every 3 weeks. The pitch doesn’t go up and down, but >> individual notes just seem to go wild. I can’t say that it is the >> same notes all the time, I don’t think it is. All the normal >> prepping has been done, checked and rechecked. >> Since it was fairly expensive to buy, and since it was a M&H I >> thought it should be in a classroom where they do masterclasses. >> After fighting it for nearly a year I put it in a practice room. >> Even worse results. Now it sits on its side in storage… >> Any thoughts here? I’ve been told that the tension resonator should >> not be messed with, but could this be an issue? What am I missing >> here? > > Hi Jim, > It's not the resonator. If that massive rim is counting on the > resonator to do anything, it would affect the whole piano, not > individual notes. I've found when individual notes go out badly in a > short time, at least with a usable pinblock, It's just about got to > be a rendering problem of some sort. I'd start there. > Ron N
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