setting pitch with a fork

[Isaac OLEG]

This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Hi ! adding a comment for Quentin and European readers.

A=440(2)  in France is named A3 , and 25 years ago we did not consider any
difference between testing the fork against F3 or F2 (US nomenclature) I did
not test with F2 since I understood where the partial beat lies because of
the "on pitch" book, mostly, no problem to give credits to the excellent
book from Rick Baldassin, even if I have more concerns actually on the
partial based only approach now..

Most probably the actual generation of techs learn more about beat
generation than us that where mostly told "too fast or too slow" . Are you ,
Quentin ?

I recall an ingenious device from Sanderson, that anybody can make its own,
these are 2 rules (of different height) made of strips of thick paper where
the spacing at the end of the key is marked with the partial series
enlighten. The 2 strips can be used one at the lower note of the interval to
be tested and the other on the highest, and the scale show immediately where
the partials are coincident. Was a very nice tool to show things to
customers and colleagues, or to look for unsuspected coincidences.

best and have a good day yourself.

Isaac




-----Message d'origine-----
De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la part
de Alpha88x@aol.com
Envoye : vendredi 20 aout 2004 04:13
A : pianotech@ptg.org
Objet : Re: setting pitch with a fork


Greetings,

             I take the fork in my right hand and strike it on my heel.
While it is vibrating, I place the stem of the fork underneath the piano
keybed. It resonates very well and you can hear it. Then, I strike the A and
listen to see how far off the A is. Then I strike the F below the A and
listen to the fork A along with the F. I count those beats. Then I remove
the fork and play the F and the A and count those beats.

           The fork and the A's beating should match the F and the A's
beating, If it doesn't then adjust the A.  It doesn't matter if the F is not
tuned yet, you're just using the F only as a constant at this point. You're
using the F to compare the fork A  to the piano's A, and then make the
beating of the fork and A match the beating of the F and A by adjusting the
A.

Julia Gottchall.
Reading, PA

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/55/81/76/fe/attachment.htm

---------------------- multipart/alternative attachment--