List I've always wondered if it would even be possible to crack a plate in a well designed piano by raising the pitch too high. Would the strongs give way first? Is the plate designed to compress under string tension rather than stretch? If a plate CAN crack with too much string tension, how many cents above pitch might this happen-- 100C? 200 C? Could the plate crack if too much twist is put on the plate from string tension (ie. raising the treble pitch much higher relative to the bass and tenor pitch)? Sorry, lots of questions here, but I've sometimes been scared to tune an archaic beater that's 200C below. I don't mind the extra money for the pitch raises, but nothing compensates for my wrecked nerves! Larry Beach, RPT Vancouver BC
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