Meantone scales, i.e. in which all non-octave intervals are generated from a stack of tempered perfect fifths and wherein, by choosing an appropriate size for major and minor thirds, the syntonic comma is tempered to unison

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    Electric musical instrument

    • Patent number 4,635,517
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    • Kabushiki Kaisha Kawai Gakki Seisakusho
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    • Patent number 4,418,602
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