Mystery Pitch Swings - Revisited

Horace Greeley hgreeley@leland.Stanford.EDU
Thu, 02 Jan 1997 10:46:08 -0800


John,

I think that I missed the original post on this thread.

What model Wurlitzer, and how old are they?

Thanks.

Horace



At 02:35 AM 12/28/96 -0500, you wrote:
>Sorry I have not replied to the answers I got (Dale Probst, Patrick Poulson,
>Roland Kaplan) referring to the mystery pitch swings on the Wurlitzer
>console, but with Christmas having just ended, things got frantic (mostly the
>business!).
>
>In answer to your questions/suggestions:
>1. No, the plate fasteners were not loose. (My practice is to *always* check
>& tighten those before I tune, especially on a piano new to me.)
>2. The piano had not come from a dryer climate. It had either come from here
>in Sacramento, or the San Francisco Bay area. It had been in the church for
>approximately three months prior to my tuning it, so was well acclimated.
>3. It is located in a building with no water within 60 feet of it.
>4. I use two different hygrometers (as a check) and they were both within a
>couple of percentage points of each other. As a matter of fact, each time I
>am at the church, the humidity is pretty much between 50%-65% year-round. The
>sanctuary is actually a *permanent* tent which should be much more prone to
>wide fluctuations in humidity.
>5. There appears to be no seperation between pinblock and back. Other than
>the lack of tuning care in the past, the piano seems to be in very good
>shape. In fact, before the church got it, it was probably not used much since
>day one of its original purchase.
>6. The only real difference that I can find between the two tuning periods
>seems to be the much lower temperature in the room the second time. As is
>usual with churches, I would guess that the heat/ac is turned off when the
>room is not in use.
>
>Whatever the reason, I am still perplexed at the difference between the two
>pianos, and between the bass and treble sections. Anyway, thanks for the
>ideas, and I will continue to seek help from the list as problems arise that
>I can't find answers to.
>
>John Elving, RPT
>Elving's Piano Service
>Sacramento, CA (home of the 1997 CA State PTG Convention)
>JElving@aol.com
>
>
Horace Greeley

Si hoc legere scis nimium eruditionis habes.

Stanford University
email: hgreeley@leland.stanford.edu
voice mail: 415.725.9062
LiNCS help line: 415.725.4627




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