This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment MessageOkay. I agree. I'm not sure I understand the issue you seem to be = trying to raise. Some belly designs incorporate soundboards that have a relatively small = amount of crown. By the time you string it up with some downbearing, = many of them will exhibit little if any crown at tension - that is no = problem, within the constraints of that design type. That is why you = always want to look at downbearing and crown to evaluate whether a = soundboard is functioning as well as the design will permit. I wouldn't feel comfortable building a board like that, but many do. But a board with a quarter-inch negative crown and tons to downbearing = is a no-go in my mind. Terry Farrell At the California Conference, I attended a grand piano maintenance = class sponsored and run by Steinway techs. I was surprised when they = made a specific point of telling us that a piano under tension does not = have to exhibit any crown, yet still sound and work just fine.=20 This wasn't in response to any questions, it was a topic on their = agenda! They also said that it might explain why some pianos are so reactive = to seasonal changes while others, e.g. Acrosonic, tend to be more = stable. Hmmmm .... Alan R. Barnard Salem, MO ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/17/af/e8/bc/attachment.htm ---------------------- multipart/alternative attachment--
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