pitch

[Greg Newell]

I'll save this for further study but as for right now ..... huh?

Greg   :>)

Denis Brassard wrote:

> Greg,
> If you are familiar with logarithms, there is a simple formula you can use
> that works for every frequencies on any given note at the piano.
> Here it is:
>
> 1+ Log (Freq./27.5)/ Log (2) X 12 = Note Number
>
> In your post you mentioned 435 Hz.
>
> 1+ Log (435/27.5)/ Log (2) X 12  = 48.8021
>
> 48 is your note number, i.e. G#4 and the decimal part X 100 is the amount
> that note is sharp; i.e. 80.21 cents.
> A semitone being 100 cents, G#4 +80.21cts = A4 -19.79cts.
> When you stated A 435 being offset by 19.79 cents, you were right on the money.
>
> Regards,
>
> Denis Brassard,
> Head Piano Technician
> SUNY Potsdam
> Potsdam, New York.
>
> >Hi Greg,
> >
> >Each beat per second is roughly equal to 4 cents. Hence, 440 bps -
> >435 bps = 5 bps X 4 cents = 20 cents. Your offset was pretty close,
> >I'd say.
> >
> >Best wishes,
> >
> >Tom
> >
> >>Greetings folks,
> >>    I recently tried to tune an older instrument that seemed as though
> >>it was designed for 435. I went about it in an unusual way. Since I'm
> >>just dense enough not to remember the formula I had to figure out how to
> >>offset the ETD to read for 435. In TuneLab (check out the new TuneLab
> >>PRO) I used the mouse on the left side of the floating boxes window
> >>until the frequency said 435. When I did that the offset read -19.79.
> >>Does this sound correct to you folks or did I mess up again?
> >>    o.k. that's one more item off of my to do
> >>list............................
> >>
> >>--
> >>Greg Newell
> >>Greg's Piano Forté
> >>12970 Harlon Ave.
> >>Lakewood, Ohio 44107
> >>216-226-3791
> >>mailto:gnewell@ameritech.net
> >
> >
> >Tom Seay
> >Piano Tech Office
> >School of Music
> >The University of Texas at Austin
> >(512) 232-2072
> >mailto:t.seay@mail.utexas.edu

--
Greg Newell
Greg's Piano Forté
12970 Harlon Ave.
Lakewood, Ohio 44107
216-226-3791
mailto:gnewell@ameritech.net