Generalized Voice-Leading Spaces

@article{Callender2008GeneralizedVS,
  title={Generalized Voice-Leading Spaces},
  author={Clifton Callender and Ian Quinn and Dmitri Tymoczko},
  journal={Science},
  year={2008},
  volume={320},
  pages={346 - 348}
}
Western musicians traditionally classify pitch sequences by disregarding the effects of five musical transformations: octave shift, permutation, transposition, inversion, and cardinality change. We model this process mathematically, showing that it produces 32 equivalence relations on chords, 243 equivalence relations on chord sequences, and 32 families of geometrical quotient spaces, in which both chords and chord sequences are represented. This model reveals connections between music… 

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