In this article, we consider the possibility of mixing two main paradigms of electroacoustic music: the writing-oriented and the performance-oriented paradigms.We show that these two opposing paradigms are the consequence of two corresponding conceptions of time. In addition, we assume that the temporal aspects of a performer's interpretation of a musical composition can be linked to both paradigms. Based on this theoretical study, we propose a formalism for composing pieces of electroacoustic music that can be interpreted in performance.
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While representing musical processes or musical scores through Markup Languages is now well established, the authors assume that there is still the need for a format to encode musical material with which a musician can interact. The lack of such a format is especially crucial for contemporary music that involves computing processes. They propose such a formal representation for composing musical scores in which some temporal properties can be interactively modified during their execution. This allows the creation of scores that can be interpreted by a performer in the same way a musician can interpret a score of instrumental music. The formal representation comes with an XML format for encoding the scores and also interfacing the representation with other types of Markup Language musical description.
National audienceWe present in this paper a XML format used to encode interactive scores created with the Iscore system. This system has been developped at LaBRI in collaboration with Ircam. Its aim is allow the composition and interpretation of interactive scores based on temporal constraints. We faced the question of the saving format by writing a XML DTD. Even if this format was designed only for saving the scores, it will be used as an interface with other XML formats for music and maybe it could be included into general digital score system
In this article, we present the development of research carried out to design a system of interactive scores for composition and execution, based on temporal constraints called Iscore. This system has been designed in order to allow musicians to interpret pieces of electro-acoustic music but since it uses a symbolic representations of the scores, it can bee seen as a system for more generally writing interaction with a temporal approach. Then, numerous other applications could be possible. This system can be used to create interactive multimedia scenarios (for theater shows or museum visits as examples) and also for adapting musical pieces or interactive multimedia documents for mutli-player applications or players with limited ability.
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