[pianotech] inharmonicity in piano wire

[Don]

Hi Paul,

I do not know why it happens, only that I have observed that result with FAC numbers becoming lower over time, particularly in instruments where humidity is well controlled.

At 11:32 AM 2/12/2009 -0600, you wrote:
>   
>And how does keeping a piano at a particular pitch result in lowering
>inharmonicity?
>
>Paul Bruesch
>Stillwater, MN
>
>On Thu, Feb 12, 2009 at 12:49 PM, Don <pianotuna at accesscomm.ca> wrote:
> <> 
> Over time, if a piano is kept at a
> particular pitch, inharmonicity may often become lower too--so it is best
> to remeasure at every service call. YMMV

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat
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