>> Don't forget these are metric wire sizes. Here are the metric piano wire sizes; Westphalia wire gauges 1 0.2 2 0.25 3 0.3 4 0.35 5 0.4 6 0.45 7 0.5 8 0.525 9 0.575 10 0.625 11.0 0.675 12.0 0.725 12.5 0.750mm 13.0 0.775mm 13.5 0.800mm 14.0 0.825mm 14.5 0.850mm 15.0 0.875mm 15.5 0.900mm 16.0 0.925mm 16.5 0.950mm 17.0 0.975mm 17.5 1.000mm 18.0 1.025mm 18.5 1.050mm 19.0 1.075mm 19.5 1.100mm 20.0 1.125mm 20.5 1.150mm 21.0 1.175mm 21.5 1.200mm 22.0 1.225mm 22.5 1.250mm 23.0 1.300mm 23.5 1.350mm 24.0 1.400mm 24.5 1.450mm The Yamaha C7 from the F model (which came out sometime around 1990) has a new scale which is a significant improvement on the previous version, which broke at E20/F21. The new scale breaks at G23/G#24, and has about the same percentage of break across the break as the Steinway D. The earlier scale was disaster, and is the model which started my education of breaking strain percentage issues over the break, when I was tuning a lot of studio pianos around 1980. Ron O. -- OVERS PIANOS - SYDNEY Grand Piano Manufacturers _______________________ Web http://overspianos.com.au mailto:ron at overspianos.com.au _______________________
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