This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment I have tuned many pianos several semitones flat by overpulling way = above pitch in one pass without breakage. We've all seen older uprights = that were nothing but a ball of rust, and no breakage. It also happens = that fairly new instruments will break a string by barely moving the = pin. Every piano I junk, I tighten each string to the breaking point just = to see what it takes to make it fail. Often the pin rotates 1/2 turn = before the string lets go. On other occasions (sometimes within the = same piano) just touching the string will make it snap.=20 My conclusion is that there is no rhyme or reason and no predicting = string breakage. I also believe there is no cure-all method to avoid = string breakage. I've tried letting down tension first, lubrication of = various types, hammer technique, etc, and they still may let go. = Fortunately, it doesn't happen that often, and if in doubt, I mention to = the customer that "occasionally strings break, but I carry spares and = they are easy to replace." This opens the possibility to the customer, = but minimizes the seriousness. =20 Mike Kurta Auburn, NY ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/54/07/fa/2c/attachment.htm ---------------------- multipart/alternative attachment--
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