最終更新日:2022/12/24

The eighty six-note segments were originally tabulated by Hauer and are the basis of his twelve-tone system. Each of [Josef Matthias] Hauer's tropes consists of two hexachords of mutually exclusive content, so that each pair of hexachords includes all twelve tones of the semitonal scale. Only eight hexachords may be associated in this way with their own transpositions. These generate the eight tropes illustrated in examples 141 and 128. Each of the remaining seventy-two hexachords must be paired with a dissimilar hexachord in order to form a trope.

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