Changing Harmonicity

[Isaac OLEG]

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Young's modulus goes high usually, as seen on those simple measures
made with Roslau and Modern Stephen wire, as the wire stiffen.
But other parameters may come in play so I have nothing to say for
sure.

I'll post later.

Isaac OLEG

> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de Patrick C. Poulson
> Envoyé : mercredi 3 mars 2004 02:55
> À : Pianotech
> Objet : Changing Harmonicity
>
>
> Hello All: I have a question about new strings and changing
> harmonicity,
> which may have been covered before. I retuned an upright
> that I restrung
> last year. The last time I tuned it I noted down the FAC
> numbers on the
> service record. I remeasured those numbers today, and they
> had all dropped
> an average of 2 cents. I wonder if others have noticed this
> happening, and
> if so, how much change they noticed and an explanation for
> this phenomenon.
> I hazard the guess that it has something to do with the
> stretching going on.
> This is the 8th tuning I gave the piano after restringing.
> The last time I
> tuned it was in September, when humidity was somewhat here
> up in the Sierra
> foothills. Thanks in advance.
> Patrick C. Poulson
> Registered Piano Technician
> Piano Technicians Guild
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
>

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