Conrad, Now THAT make sense. I can see how a pitch raise could slightly change the bridge angle, enough to change how sound travels through the bridge to the sound board. I'd be willing to bet that is what changed the tone. In your case it sounds like the cap was separating from the bridge. That is not the case here. This isn't that drastic. On an interesting note, the piano seems to be a little brighter today. Not what it was but better. I yanked this bird up something like 150 cents so it probably went a little nuts with that kind of change. chris >At 13:01 3/1/2004 -0500, you wrote: >>Duaine, >> >>Thanks for your reply. I hadn't thought of the grooves made by >>bass string windings. It seems that the bass section is usually >>where I notice this too so that makes sense. The problem here is >>that the biggest change in tone is in the middle section, third >>through fifth octaves. >> >>I also agree about hammer shaping but this is an old monster, It's >>past filing and needs new hammers. I don't think this old fella is >>really worth it. >> >>chris > > >Did you roll the bridge/cap right off the soundboard? > >I tuned an old Baldwin 243 a couple weeks ago - in an elementary >school I'd never been to before. The tone fell off a cliff as I >went up past the treble break. The cap had separated 2-3mm from the >base for about an octave. If it weren't for long bridge pins... > > >Conrad Hoffsommer, RPT, MPT, CCT, PFP, ACS. >Decorah, IA > >- Certified Calibration Technician for Bio-powered Digitally >Activated Lever Action Tone Generation Systems. >- Pianotech Flamesuit Purveyor >- American Curmudgeon Society - Apprentice Member and Founder > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives -- Christopher D. Purdy R.P.T. School of Music, Ohio University Athens, Ohio 45701 (740) 593-1656 fax (740) 593-1429 purdy@ohiou.edu
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