I forgot to mention that the unisons don't sour, the pitch just drifts up. Barbara Richmond ----- Original Message ----- From: "Barbara Richmond" <piano57 at insightbb.com> To: "College and University Technicians" <caut at ptg.org> Sent: Thursday, March 09, 2006 10:15 AM Subject: Re: [CAUT] pitch rise > Hi Richard, > > I was wondering about this myself. Though I only noticed it when I > started > tuning unisons "as I go." The spot that goes up most in my case is the > first treble section of a D on stage. The piano is usually within a few > cents (or less) of 440 before tuning. > > Barbara Richmond, RPT > > > ----- Original Message ----- > From: "Richard West" <rwest1 at unl.edu> > To: "College and University Technicians" <caut at ptg.org> > Sent: Thursday, March 09, 2006 9:44 AM > Subject: [CAUT] pitch rise > > >> With the discussion of unison drift, I have a question which may be >> related. What is the cause for pitch rise while tuning? I can >> understand why the pitch might fall, especially if there's a significant >> pitch change. But I'm not talking about a radical pitch alteration. >> >> Here's the scenario. I'm working on a newer or rebuilt piano with tight >> pins and still relatively stretchy strings. I'm trying to stabilize the >> instrument, but it's being stubborn. I'm having to be more aggressive >> with my tuning technique, i.e., in order to settle the pitch I have to >> first pull the string higher than I like in order to move the tight pin >> and then allow the stretchy string to settle back to the pitch I want. >> As I move up the piano, the pitch behind me tends to creep higher, >> sometimes to the point I have to retune the note below. I'm not a >> pounder, so I don't think that I'm beating the piano too hard. I'm not >> trying to pitch raise/lower the piano, just give it a good solid tuning. >> >> What can I do to prevent this "phenomenon?" Does anyone else experience >> this? What is the cause? >> >> Richard West >> >> >> _______________________________________________ >> caut list info: https://www.moypiano.com/resources/#archives >> > > > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives >
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