This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hi list ! Can anyone explain me what is behind those longitudinal waves ? Did I understand well that longitudinal waves are movements of the = string in the direction of the string itself ? But how can you calculate them ? How do they appear ? (through overcentering hammers ? or anyway ?)=20 Do they affect tone ? how ? Can you control this ? St=E9phane Collin ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/e0/e2/9d/d6/attachment.htm ---------------------- multipart/alternative attachment--
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