pitch raise

[Jerry Hunt]

Barrie Heaton wrote:

> Below  is taken from one of my web pages. The page is:
>  http://www.uk-piano.org/history/pitch.html
>
> <snip>

I have a question: how was frequency measured before electronics? Presumably,
some (many? most? all?) of the frequencies you posted are based on tuning forks
still in existance. Absent that, how would one know, with any certainty,
information on any Hz's prior to this century?

Cheers,
--
Jerry Hunt
Dallas, TX USA