For formulae on harpsichord inharmonicity, see
Patrizio Barbieri's article. Thomas Donahue apparently did his own string break point tests on many wires, including Rose, Instrument Workshop, Birkett, Zuckermann, Vogel, Voss. They are documented in an appendix to his book,
The Harpsichord Stringing Handbook.
Bottom line, though, is that there hasn't been a lot of research in that area. I strongly suggest reading Donahue's book as a first step.
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Fred Sturm
University of New Mexico
fssturm@unm.eduhttp://fredsturm.nethttp://www.artoftuning.com"We either make ourselves happy or miserable. The amount of work is the same." - Carlos Casteneda
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Original Message:
Sent: 12-05-2021 16:36
From: Fred Sturm
Subject: Harpsichord equations for breaking % and inharmonicity
Resources:
Paul Poletti, Malcolm Rose, Jean Louchet, Marc Vogel and Carey Beebe would be worth consulting along with Stephen Birkett.
Regards,
Fred Sturm
"When I smell a flower, I don't think about how it was cultivated. I like to listen to music the same way." Mompou
Original Message:
Sent: 12/5/2021 12:33:00 PM
From: Laurence Libin
Subject: RE: Harpsichord equations for breaking % and inharmonicity
Original Message:
Sent: 12/5/2021 11:58:00 AM
From: Nicholas Gravagne
Subject: Harpsichord equations for breaking % and inharmonicity
List,
We are working on harpsichord scaling spreadsheets and need metric equations (and constants) for breaking % and inharmonicity. We understand that there are several possible wire choices such as red brass, yellow brass, steel, etc,, each with its own property characteristics.
Thanks
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Nick Gravagne, RPT
Mechanical Engineering
Nick Gravagne Products
Strawberry, AZ 85544
gravagnegang@att.net
928-476-4143
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