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Geometry of Music Perception

Author

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  • Benjamin Himpel

    (Department of Computer Science, Reutlingen University, 72762 Reutlingen, Germany)

Abstract

Prevalent neuroscientific theories are combined with acoustic observations from various studies to create a consistent geometric model for music perception in order to rationalize, explain and predict psycho-acoustic phenomena. The space of all chords is shown to be a Whitney stratified space. Each stratum is a Riemannian manifold which naturally yields a geodesic distance across strata. The resulting metric is compatible with voice-leading satisfying the triangle inequality. The geometric model allows for rigorous studies of psychoacoustic quantities such as roughness and harmonicity as height functions. In order to show how to use the geometric framework in psychoacoustic studies, concepts for the perception of chord resolutions are introduced and analyzed.

Suggested Citation

  • Benjamin Himpel, 2022. "Geometry of Music Perception," Mathematics, MDPI, vol. 10(24), pages 1-34, December.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:24:p:4793-:d:1005702
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    References listed on IDEAS

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    1. James R. Hughes, 2022. "Generalizing the Orbifold Model for Voice Leading," Mathematics, MDPI, vol. 10(6), pages 1-26, March.
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