A concert D that was 65 cents flat is not in the position to be a concert instrument as far as tuning stability... David Ilvedson, RPT Pacifica, California ----- Original message ---------------------------------------- From: "pianolover 88" <pianolover88@hotmail.com> To: pianotech@ptg.org Received: 12/20/2005 10:04:47 PM Subject: RE: Let's Get This Settled was How to explain a pitchadjustment..and! >Do you think that if a concert D that had to be tuned for a major recital, >recording, etc., that was, say 65C flat would be perfectly stable after a >single pitch raise and one fine tuning? >Terry Peterson >----Original Message Follows---- >From: "David Love" <davidlovepianos@comcast.net> >Reply-To: Pianotech <pianotech@ptg.org> >To: "'Pianotech'" <pianotech@ptg.org> >Subject: RE: Let's Get This Settled was How to explain a >pitchadjustment..and! >Date: Tue, 20 Dec 2005 20:56:41 -0800 >My experience says it doesn't matter. Once you correct the pitch and do a >fine tuning, all other things remaining constant, the piano will stay in >tune. The piano doesn't really settle. Moving the piano cross country may >challenge the piano in terms of EMC but nothing more. An upright can go out >of tune with a move across the room because the four point weight bearing >can tweak the stresses in the case a bit if the floor is not exactly level. >The three point weight bearing of a grand makes it immune to such problems. >David Love >davidlovepianos@comcast.net >-----Original Message----- >From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf >Of Alan Barnard >Sent: Tuesday, December 20, 2005 8:25 PM >To: Pianotech >Subject: Let's Get This Settled was How to explain a pitch adjustment..and! >Terry's post begs the question (and please understand I ain't challingin' >nobody on nuttin' ... I'm just seeking information and opinions and >science, here) ... >Do a piano really need time to "settle" after .. >1. Big pitch change? >2. Small pitch change? >3. Moving it across country? (other than environmental acclimation) >4 Moving it across the room? >I have been under the impression--and it may be altogether wacky--that >every change that is going to occur in the piano occurs immediatly upon >cranking the pin. I thought someone (Dr. Sanderson, perhaps) tested this >and proved it. >So an adjunct question: Let's say we find a piano 15 cents flat. We pitch >correct and fine tune and walk out the door with a follow-up appointment >set for three months. When that day arrives, for those who have set such >appointments, is the piano any flatter or more sour than it would have been >if we found it A440 but still came back in three months? >Same question, only now the piano was originally 35 cents flat. 60 cents? >120 cents? >Certainly I've restrung pianos and found them pretty sick in a couple of >months but have always attributed that to new wire stretch, not tension >settling. >Helmet on, raincoat on, rubber duckie in hand, I await your missives, if >not missiles ... >Alan Barnard >Salem, Missouri > > [Original Message] > > From: pianolover 88 <pianolover88@hotmail.com> > > To: <pianotech@ptg.org> > > Date: 12/20/2005 6:24:24 PM > > Subject: Re: How to explain a pitch adjustment..and! > > > > Depending on the amount of PR, ususally more than 12C, I always schedule >a > > "follow-up" tuning in 1-3 months, explaining that after restoring all >that > > loststring tension, the piano now must "settle" and adjust to that added > > tension, and it some shifting of will occur. So the follow-up is crucial >in > > building long term stabilty. And that tuning will leave the piano much >more > > stable because tuning pin movement will be much smaller than during the > > initial PR and tuning. Again, never a problem. Yes, it does help to have >a > > high confidence level and be able to effectively communicate and impart > > information to your client in a clearand concice manner. I am a salesman >as > > well as a technician; that has made the difference between just getting >by > > to making a six figures. > > > > Terry Peterson >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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