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Ah, I recommend 50-55% Rh% which is the metric used with customers. Not emc. Mr. Goldschlager distracted me for a moment and i misread the Rh- emc chart. -chris ------------------------------ Chernobieff ...

Hello all, I just tuned a Yamaha U3 with a Piano Lifesaver System installed in an old theatre. When I was done, the midsection was about 5 cents flat. After retuning the midsection and touching up a ...

If you want to quantify the corrosion on an old piano the best test is not the appearance but the feel. If the plain wire strings are still smooth to the touch they're probably going to render smoothly ...