Four-part chorale transformation by harmonic template voicing

Louis Bigo 1, 2, 3 Darrell Conklin 3, 4
1 Représentations musicales;
STMS - Sciences et Technologies de la Musique et du Son, IRCAM - Institut de Recherche et Coordination Acoustique/Musique
Abstract : This work presents a method to transform a four-part chorale in the style of J. S. Bach into a new one. The transformation conserves the harmonic structure of the original chorale which is therefore seen as a harmonic template. Four new sequences of notes which respect the harmonic template are computed to constitute the voices of the transformed chorale. The transformation is performed by running a local search algorithm that minimizes two concurrent objective functions that compute the likelihood of the horizontal and vertical organization of pitches regarding a statistical model built from a reference corpus of 185 four-part chorales from J. S. Bach. Results show that the algorithm performs well in generating voices in the style of J. S. Bach and could constitute a promising tool for four-part chorale chord transformation.
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Louis Bigo, Darrell Conklin. Four-part chorale transformation by harmonic template voicing. [Research Report] Universidad del País Vasco. 2016. ⟨hal-01802235⟩

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