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arXiv · 2506.17778

Algebraic Structures in Microtonal Music

Veronica Flynn·Carmen Rovi
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Abstract

We will discuss how certain group theory structures are found in music theory. Western music splits the octave into 12 equal tones called half-steps. We can take this division further and split the octave into 24 equal tones by splitting each half-step in two, called a quarter-step. By assigning each of these 24 notes a number, we can discuss musical actions mathematically. In this paper, we analyze 24-tone microtonal music and explore how musical and harmonic structures in this system can be interpreted in terms of group-theoretic structures. This work extends the study by Crans, Fiore, and Satyendra.

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Veronica Flynn, Carmen Rovi. 2025-06-21. Algebraic Structures in Microtonal Music. https://arxiv.org/abs/2506.17778

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