A440 tolerances

[William R. Monroe]

Don,

I don't think Terry is listing his tolerance.  I think the implication is
that unless you start to specify accuracy to the tenth of a Herz, some
nitpicky person (customer, or another tech <G>) who says, "You said it is at
440, and it's at 439.63!!", has no grounds to complain, based on an
assertion of "Tuned at A440" which, technically, means tuned between A439.5
and A440.5.

My 0.5Hz
William R. Monroe
Madison, WI
Assoc.


----- Original Message ----- 
From: "Don" <pianotuna@accesscomm.ca>
To: "Pianotech" <pianotech@ptg.org>
Sent: Friday, November 05, 2004 10:06 AM
Subject: Re: A440 tolerances


> Hi Duane and Terry,
>
> Nice definition Terry. So your tolerance then is + or - 2 cents. There are
> many technicians who feel that 2 cents is the "outside" limit for pitch
> correction on a concert tuning. I am not speaking of what is "acceptable"
> to the public--I am talking about what is acceptable to our "golden ears".
> Personally I want my pitch corrections to be within 1 cent of A440, or
less.
>
> At 08:14 AM 05/11/2004 -0600, you wrote:
> >Terry,
> >
> >Talk about splitting hairs - unless you are a perfectionist or a REAL
> >musician, what difference does it make. (Going out on a limb) Probably,
> >most customers don't even know what A440 means.
> >
> >Flame suit on
> >
> >Farrell wrote:
> >
> >>Significant digits. Scientific/mathematical concept. A440 technically
means
> >>closer to 440 Hz than 441 or 339, or between 339.5 and 440.5. If you
want to
> >>specify A440 and not 440.1 Hz, then you would need to indicate A440.0.
> >>
> >>Terry Farrell
> -- 
> >Duaine Hechler
>
> 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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>
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