On Feb 2, 2011, at 8:46 PM, Duaine Hechler wrote: > … HOWEVER, the pianos must be really, really flat - say 300 cents > > AND - you are allowed only - ONE - pass. … Duaine, Please relate the time you feel is reasonable to do one pass to bring a piano back to the vicinity of A440 for this type of situation? For reference: Without pushing the envelope, 30 minutes tops is all I need to do one pass from start to finish for a piano as flat as you indicate to be ready for a 2nd pass. Keith
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