Le 30 juin 2017
de 16h00 à 16h30
Le Patio (université de Strasbourg)
22 rue René Descartes, 67000 Strasbourg
amphithéâtre 6
Séance précomposée - Formal, Theoretical, and Computational Models in Popular Music Analysis
Pré-acte / Acte
Auteur : Moreno Andreatta et Louis Bigo
Within the field of computational music analysis, music information research (MIR) has developed a panoply of approaches aiming at retrieving the musical content from corpora ranging from classical to popular music. In contrast to currently employed signal-based approaches in Music Information Research, the paper stresses the necessity of introducing a structural multidisciplinary approach into computational musicology, making use of advanced mathematics such as simplicial complexes to represent pitch and chord spaces. Our approach is based on the computational modeling of generalized Tonnetz. Its originality relies in the computational aspects that are taking into account and in the generalized framework which enables to develop a new methodology in the study of all possible geometric spaces associated to a music-analytical situation.
Theoretical concepts are formalized using spatial computing, a non-conventional paradigm in computer science aiming to reformulate in spatial terms the data structures and their formal manipulations. Once integrated into a computer-aided model for music analysis and composition, these tools allow approaching the different musical task as stylistic classification, analysis and composition in a purely topological way. The resulting approach is illustrated in the context of popular music composition and analysis through the use of the dedicated computer-aided environment HexaChord, to which new facilities have been added in order to increase its possible applications not only in music analysis but also in music composition. Several interactive examples are presented exploring new transformations on the different trajectories one may compute on the different available pitch spaces.
