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Acquisition et représentation de connaissances en musique

Abstract : This study deals with computer representations of musical knowledge on the basis of two real-scale experiments. The first experiment focusses on knowledge acquisition in ethnography: an expert (the musician), an analyst (the musicologist) and a machine are interacting in a learning situation. Improvisation schemata through which musicians express themselves are identified and formalized with production rules in a formalism derived from generative grammars and pattern languages. A deterministic algorithm is introduced for assessing the membership of arbitrary strings to the langage defined by a given (context-sensitive) grammar. A technique for the inductive inference of regular languages is presented, enabling automatic knowledge acquisition of syntactic and lexical knowledge. The second experiment is part of the design of a computer environment for musical composition. Here the problem is time representation in a discrete structure of “time objects”, more generally the synchronization of parallel processes. A method is outlined for the determination of a structure with incomplete data about the synchronization of its objects. The concept of “sound object” is then formally introduced. An efficient algorithm is proposed for the time-setting of objects in a structure, given the constraints arising from their metric and topological properties.
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Contributor : Bernard Bel <>
Submitted on : Wednesday, July 6, 2005 - 10:41:32 AM
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  • HAL Id : tel-00009692, version 1



Bernard Bel. Acquisition et représentation de connaissances en musique. Génie logiciel [cs.SE]. Université de droit, d'économie et des sciences - Aix-Marseille III, 1990. Français. ⟨tel-00009692⟩