---------------------- multipart/alternative attachment The house was cooled with an evaporative cooler (common here in NM) and it was running--a rumble in the background. Interesting thought though. I'll have to look into it. I've since wondered if seating the strings on the bridge and leveling/straightening the strings under the pressure bar would affect it. Probably not as it did seem fairly consistent through a couple octaves. I usually do this with grands but I haven't made it a practice with small uprights yet. ;-) Had a cooler running while I worked on the grand but not the same effect. Andrew At 01:58 PM 7/4/2004 +0000, you wrote: >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 ne! xt 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/e7/85/e9/4b/attachment.htm ---------------------- multipart/alternative attachment--
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