This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment ----- Original Message -----=20 From: David Love=20 To: Pianotech=20 Sent: September 19, 2002 5:43 PM Subject: Hammers and scale I'd be interested in hearing more on the relationship between hammers = and scale design. It seems that the trend in rescaling is often to add = tension to the upper regions of the piano, especially Steinways. Is the = older lower tension scale related to the original size and weight of the = hammer? Does a higher tension scale call for a larger or harder hammer = necessarily? David Love In general a lower tension scale can, and should, use a somewhat more = resilient and less massive hammer than one having a higher tension = scale. Of course, there should also be some changes in the soundboard. = The lower tension scaling will want a lighter, more flexible soundboard = as well. It's one of the nice things about the smaller Steinway scales.=20 The theory is that a higher-tension string is potentially capable of = storing more energy. There are, however, a number of trade-offs.=20 The heavier hammer creates more flex and compression in the action = components so the action reaches saturation sooner and its potential = velocity is lower.=20 Higher tension scales call for a moderately stiffer and more massive = soundboard and a slightly harder and more massive hammer. Emphasis on = the two words, moderately and slightly! It's still a matter of = balancing a well-designed scale with a well-designed soundboard and then = selecting a hammer of reasonable mass and high resilience to work with = them. There is also a difference between a long, thin string and a short, = thick string even though tension may be the same. The short, thick = string is inherently stiffer and will store more higher harmonic energy, = less lower harmonic and fundamental energy. And, of course, don't forget = the influence of the backscale. Del ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/d5/af/f2/ac/attachment.htm ---------------------- multipart/alternative attachment--
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