Conference paper Open Access

Modeling and Learning Structural Breaks in Sonata Forms

Laurent Feisthauer; Louis Bigo; Mathieu Giraud

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.
Files (881.2 kB)
Name Size
ismir2019_paper_000047.pdf
md5:f3ed32de534d4a7817f2823c169c2fa8
881.2 kB Download
48
34
views
downloads
All versions This version
Views 4848
Downloads 3434
Data volume 30.0 MB30.0 MB
Unique views 4545
Unique downloads 3131

Share

Cite as