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Modeling and learning structural breaks in sonata forms

Laurent Feisthauer 1, 2 Louis Bigo 1, 2 Mathieu Giraud 1, 2
2 Algomus
MIS - Modélisation, Information et Systèmes - UR UPJV 4290, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
Abstract : Expositions of Sonata Forms are structured towards two cadential goals, one being the Medial Caesura (MC). The MC is a gap in the musical texture between the Transition zone (TR) and the Secondary thematic zone (S). It appears as a climax of energy accumulation initiated by the TR, dividing the Exposition in two parts. We introduce high-level features relevant to formalize this energy gain and to identify MCs. These features concern rhythmic, harmonic and textural aspects of the music and characterize either the MC, its preparation or the texture contrast between TR and S. They are used to train a LSTM neural network on a corpus of 27 movements of string quartets written by Mozart. The model correctly locates the MCs on 14 movements within a leave-one-piece-out validation strategy. We discuss these results and how the network manages to model such structural breaks.
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Contributor : Mathieu Giraud <>
Submitted on : Monday, December 9, 2019 - 10:51:02 AM
Last modification on : Friday, April 9, 2021 - 5:46:06 PM


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Laurent Feisthauer, Louis Bigo, Mathieu Giraud. Modeling and learning structural breaks in sonata forms. International Society for Music Information Retrieval Conference (ISMIR 2019), 2019, Delft, Netherlands. ⟨10.5281/zenodo.3527828⟩. ⟨hal-02162936v2⟩



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