the performance of a scenario, the performer has the possibility to influence its execution by triggering interactive points (IPs). IPs are defined by the composer during the composition and allow for agogic modifications (i.e., the possibility to change the start and stop times of TOs during execution ). In this sense, a performance constitutes an instance of a finite set of possible scenarios that share the same temporal properties.
support: 1. Flexible control structures (e.g., conditionals, loops) 2. Mechanisms for the automatic verification Several researchers have made many efforts to overcome these limitations: • Petri nets: Allombert 2009 • Process calculi: Olarte 2009, Toro 2014 but there are no practical solutions for the automatic verification and real-time performance, and the models cannot be straightforwardly implemented or extended.
interpretation of interactive scores. • ReactiveIS extends the full capacity of temporal organization of i-score. • It is possible to extend the language for the specification of conditionals and loops. • The operational semantics based on labelled trees are simpler and more intuitive than the current model in HTSPN of i-score. • The declarative interpretation of ReactiveIS programs as formulas in SELL is adequate. 28
of the semantics. • Automatic checking of bound times of execution. • Front-end for the specification of properties. • Extension for conditional and loops. 29
C. (2015). Foundations for Reliable and Flexible Interactive Multimedia Scores. In T. Collins, D. Meredith, & A. Volk (Eds.), 5th International Conference on Mathematics and Computation in Music, MCM 2015, London, UK, June 22-25, 2015 (Vol. 9110, pp. 29–41). Springer. https://doi.org/10.1007/978-3-319-20603-5_3 2. Allombert, A. (2009). Aspects Temporels d’un Système de Partitions Musicales Interactives pour la Composition et l’Exécution. Université de Bordeaux. Retrieved from http://ori-oai.u-bordeaux1.fr/pdf/2009/ALLOMBERT_ANTOINE_2009.pdf 3. Olarte, C., & Rueda, C. (2009). A Declarative Language for Dynamic Multimedia Interaction Systems. In E. Chew, A. Childs, & C.-H. Chuan (Eds.), 2nd International Conference on Mathematics and Computation in Music, MCM 2009, New Haven, CT, USA, June 19-22, 2009 (Vol. 38, pp. 218–227). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-02394-1_20 4. Toro, M., Desainte-Catherine, M., & Rueda, C. (2014). Formal semantics for interactive music scores: a framework to design, specify properties and execute interactive scenarios. Journal of Mathematics and Music, 8(1), 93–112. https://doi.org/10.1080/17459737.2013.870610 31
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