According to Pauello's typogram spreadsheet, the recommended speaking lengths for .775mm XM wire (12 1/2 standard gauge) ranges from 52 to 57mm. At 56mm, you are at 81.24% of breaking tension. Looks very workable.
With, Paulello M wire, which I understand to be comparable with what is routinely available from our usual suppliers, you would be at 98.74% of breaking tension.
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Floyd Gadd RPT
Regina SK
(306) 502-9103
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Original Message:
Sent: 06-03-2022 16:47
From: Will Truitt
Subject: S&S S Speaking Length
A good candidate for XM Paulello wire.
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Will Truitt
Bristol NH
1-603-934-4882
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Original Message:
Sent: 06-03-2022 16:32
From: Paul McCloud
Subject: S&S S Speaking Length
I once worked for a store that had a piano like this. The top 3 or 4 strings could not be pulled to pitch without breaking. I tried several wire sources, and nothing I put on there would take the tension. I finally called the factory, and they admitted that some of their pianos had the bridges mounted that had speaking lengths that were too long. Yours may be one of these.
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Paul McCloud, RPT
Accutone Piano Service
www.AccutonePianoService.com
pavadasa@gmail.com