According to a handout from Dr. Albert Sanderson, the ranges for "very low" to "very high" tension scales are: Monochords: 200 to 290 pounds Bichords: 160 to 235 pounds Trichords: 140 to 200 pounds In my opinion, this would apply, ONLY, to modern instruments, as I've seen a much wider range, especially in Ancient instruments. Also, I suspect this is a "safe" range and not an "actual". The classic example would be The Mason & Hamlin 9', note 1, which is in the 300+ range. And it's at 70+% of it's breaking strength! Most of these have been "replaced" a few times.<G> Regards, Joseph Garrett, R.P.T. Captain, Tool Police Squares R I -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061019/3ef72fd9/attachment.html
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