---------------------- multipart/alternative attachment This reply is about the Gulbranson.Was there a ceiling fan running in the room where the piano was?That can make the sound you described. Robin Olson -------------- Original message -------------- > I recently brought a Gulbranson Console back up to pitch and tune. I > encountered a curious phenomenon that I'd like to delve into. When I > brought the unisons into tune I would eliminate interference beats but > would open up another quaver (the best I can describe it) that was > consistent throughout the mid treble. I tried re-tuning several times and > it opens up only when the unisons are well in tune and the intervals sound > OK except for the quaver in the notes. The speed, fast, was fairly > consistent from one note to the next. > The customer stated that this was the best her piano had ever sounded, was > ecstatic, so I didn't bring that up. I'd just like to be armed with some > ideas for next time I encounter it as I hate it. > > The next piano that day was a Knabe 6' grand and quite a joy to bring > 25cents plus up to pitch. It had four/five pins at the bottom of the bass > driven so the coils were all the way to the plate. I CA glue treated them > and some notchy pins at the high treble. I'm wondering if it is possible > to ream the holes a little and shim with sand paper without breaking the > coils. I'm thinking of loosening the tension on those strings and then > driving the pin out from the bottom. Problem is, is it possible to drive > it back in with shims? Or can those heavy bass strings be unwound from the > pin and reinsterted without breakage? > > Be-quavered in New Mexico > Andrew > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/98/0a/ce/d1/attachment.htm ---------------------- multipart/alternative attachment--
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