>- When you talk about string-to-bridge "coupling", do >you mean the physical attachment of the string to the >bridge so that the string doesn't bounce off the >bridge, or are you thinking of the mechanical coupling >factor - a mathematical model representing the portion >of string energy that is coupled off to the soundboard >via the bridge? (My use of the word "coupling" refers >to the second.) I wasn't aware there was a difference. Clamped is clamped is clamped. >- On a piano with vertical hitch pins (like a Baldwin >Accujust), if we set the downbearing to zero on a >single hitch pin (but leave all the other strings as >they were), will there be a significant difference in >tone compared to the same string when it has its >factory adjusted downbearing? It would certainly surprise me. I've tried it and didn't hear anything identifiably different, though I've read one report on the list here indicating there was a detectable difference. But then I've read a lot of stuff here that doesn't connect to anything in my world, so I'd say you would have to try it for yourself if you have any hope of making sense of it. Incidentally, a little time with a few Accujust equipped Baldwins and a bubble gage will have you questioning the definition of "factory adjusted downbearing" pretty quickly. Ron N
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