<HTML><HEAD></HEAD> <BODY dir=ltr> <DIV dir=ltr> <DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt"> <DIV>Well, Ken, I just looked it up and wouldn’t ya know, it’s A440.  I found a page using WWV as the search term.  1000 cps would be a very logical guess.</DIV> <DIV> </DIV> <DIV>Soooo, by golly, all this is indeed related to piano work after all.  This means you can check your A440 fork to the National Bureau of Standards by tuning in to a number of frequencies across the spectrum  ......  finding the radio to do that is the trick.</DIV></DIV></DIV></BODY></HTML>