There is no way to really know unless you provide the speaking lengths as well as the wire sizes. From that information inharmonicity, tension, power, breaking % can be calculated and optimum wire sizes can be calculated for a given tension. From there an improved bass scale can be calculated that may well make the piano sound longer than it actually is. Old scale designers tended to use scales that are not optimized for best results. Give me the data and I will calculate a scale for a minimal fee. Newton
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