---------------------- multipart/alternative attachment In a message dated 6/30/03 4:30:01 PM Pacific Daylight Time, RNossaman@cox.net writes: > Likewise, but(t)... > Have you ever had the first string you tuned drop suddenly as you were > tuning the second or third to it, even after pounding the first string into > what should have been adequate submission? Where did the pitch drop come > from? There are only three remotely rational possibilities I can think of. > One is from the back scale, which I consider most likely in spite of the > pounding. Second is from the coil, which, interestingly enough, will often > entertain you with a dramatic pitch drop if you tap on it a bit, but > normally won't if you don't. Third is a highly localized structural failure > affecting only one string. It's pretty interesting to watch the display on Tunelab as I do a pitch raise of epic proportions, especially in the killer octave section. For those unfamiliar Tunelab(Pocket, in my case), it works like this: each string has it's own spike in the graph. Get the unison tight, and there is only one spike. When I show customers what happens during a pitch raise, and they can SEE the pitch on the neighboring string change with their eyes(many couldn't be expected to hear it), they begin to understand the concept of a pitch raise a little better. I don't know if it's the backscale or not, but I'm willing to take the word of those with a better grasp of the physics of it. Dave Stahl ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/3f/c4/4d/03/attachment.htm ---------------------- multipart/alternative attachment--
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