Hexachordal combinatoriality refers to a compositional technique where hexachords, which are six-note aggregates, are combined and permuted to create new musical material. This method allows composers to explore different organizational possibilities within a limited pitch set, often resulting in complex textures and relationships between musical lines. In atonality and serialism, hexachordal combinatoriality becomes an essential tool for generating themes and developing motifs while avoiding traditional tonal constraints.
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