Bridge roll is due more to suspension bridges and hurricanes..... Terry Farrell On Aug 29, 2009, at 11:55 PM, Marshall Gisondi wrote: > If I'm reading this correctly, it sounds like changes in pitch are > due mostly to structural changes such as string rendoring, plate > flexing. Bridge roll is due more to string rendoring and > soundboard movement? Is this what I'm reading? Also Stability of > tuning doesn't affect the pitch drop as an initial cause? It's late > so I'm not sure I'm reading everything correctly. I think tuning > stability will help aid in the pitch staying where it should be > during a pitch raise or lowering if there is less wandering in > tuning, moving that pin and string less I think would help. So what > I'm saying and i hope I'm correct, is that structural factors will > affect pitch, but tuning stability will determine how much "out of > wackness' we might receive after a pitch raise? > Marshall -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090830/80ab375f/attachment.htm>
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