Evolving four-part harmony using genetic algorithms

Authors:
Patrick Donnelly;John Sheppard
Affiliations:
Department of Computer Science, Montana State University, Bozeman, MT;Department of Computer Science, Montana State University, Bozeman, MT
Venue:
EvoApplications'11 Proceedings of the 2011 international conference on Applications of evolutionary computation - Volume Part II
Year:
2011

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Abstract

This paper presents a genetic algorithm that evolves a fourpart musical composition-melodically, harmonically, and rhythmically. Unlike similar attempts in the literature, our composition evolves from a single musical chord without human intervention or initial musical material. The mutation rules and fitness evaluation are based on common rules from music theory. The genetic operators and individual mutation rules are selected from probability distributions that evolve alongside the musical material.