Posted by Bill on April 10, 2001 at 13:27:51:
In Reply to: Re: Re: A440 ? posted by Benjamin Schardt on April 10, 2001 at 11:50:07:
Convention in 1912 established the protocol of A as 440 cps. Don't know who called the convention, who attended but it did happen and this was the result. That is the basis for the note and what period of vibration can be called that note. My foggy old memory tells me that the convention might have been London.