Negative Inharmonicity

[Gilreath@aol.com]

Hi everybody,

I ran into something interesting today and thought that I would throw it out
to see where the discussion leads.  While tuning a Knabe console, I noticed
that when then fourth patrial of F3 is tuned to F5 then F6 is compared you
find that F6 if a couple of cents flat, ie. negative inharmonicity.  BTW, yes
this is while taking the meaurements for an FAC tuning.  This note is on the
treble bridge and has wound strings.  I remember this issue coming up a
couple of years ago in the journal and perhaps one of you remember the
reference and such.  Any good explanations out there for this kind of
measurement?

Thanks,

Allan

Allan L. Gilreath, RPT
Gilreath Piano & Organ Co.
Berry College
Gilreath@aol.com