Stephen- Thank you for the comments. You are correct, of course. Considering the huge range of pitch that could be considered "authentic", my primary concern as technician is what would be best long term for the instrument. I think it is safe to say, as you also implied, that some of the higher pitches used on those early pianos were not necesarily the best for that particular instrument, which resulted in problems. No doubt these were some of the factors which contributed to the demand for stronger cases in time. Granted, a modern builder today probably should be able to design an early piano which can hold up to 440 long term. With such a huge non-standard pitch range, almost anything could pass as "authentic" so we are left with the builders recommendation and that is fine with me. thanks again- Dennis.
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