Computational Fugue Analysis

• DOI: 10.1162/comj_a_00300
• Publication Date: 2015-05-28T19:42:33Z
• Authors: Mathieu Giraud; Richard Groult; Emmanuel Leguy; Florence Levé
• Keywords: Fugue (hash function); Exposition (narrative); Ground truth

One of the pinnacles form in classical Western music, fugue is often used teaching music analysis and composition. Fugues alternate between instances a subject other patterns modulatory sections, called episodes. Musicological analyses are generally built on these sections. We have developed several algorithms to perform an automated fugue, starting from score which all voices separated. By focusing diatonic similarities pitch intervals, we detect subjects countersubjects, as well partial harmonic sequences inside also implemented tools scale degrees, cadences, pedals, method for segmenting into exposition episodic parts. Our were tested corpus 36 fugues by J. S. Bach Dmitri Shostakovich. provide formalized ground-truth data this dynamic visualization ground truth our computed results. The complete system showed acceptable or good results about one half tested, enabling us depict their design.