Hey you all Recently I put a board in a 1872 Swy. style 1. FOUND THAT A PITCH LEVEL OF a- 459 WAS REQUIRED TO even begin to get adequate tonal response. I suggest taking string length measurements at note 88 or 85 and elsewhere.crunch these quickly however and compare them to something modern. If tensions are way low then the piano was scaled for higher pitch level. See anniversary edition of P.T.J. two months back .Excellent info on historical pitch . Dale Erwin R.P.T.
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