Integrating Constraints and Concurrent Objects in MusicalApplications: A Calculus and its Visual Language

We propose { PiCO}, a calculus integrating concurrent objects and constraints, as a base for music composition tools. In contrast with calculi such as NiehrenMueller:Free, milner.parrow.ea:calculus-mobile or TyCO vasconcelos:typed-concurrent, both constraints and objects are primitive notions in { PiCO}. In { PiCO} a base object model is extended with constraints by orthogonally adding the notion of constraint system found in the \rho-calculus OzCalculus. Concurrent processes make use of a constraint store to synchronize communications either via the ask and tell operations of the constraint model or the standard message-passing mechanism of the object model. A message delegation mechanism built into the calculus allows encoding of general forms of inheritance. This paper includes encodings in { PiCO} of the concepts of class and sub-class. These allow us to represent complex partially defined objects such as musical structures in a compact way. We illustrate the transparent interaction of constraints and objects by a musical example involving harmonic and temporal relations. The relationship between Cordial, a visual language for music composition applications, and its underlying model { PiCO} is described.

• Autores: Tamura Morimitsu, Gabriel; Assayag, Gerard; Díaz, Juan Francisco; Valencia, Frank; Quesada, Luis O.; Alvarez,Gloria; Rueda, Camilo
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2001
• Institución: Universidad ICESI
• Repositorio: Repositorio ICESI
• Idioma: eng
• OAI Identifier: oai:repository.icesi.edu.co:10906/79574
• Acceso en línea: http://link.springer.com/article/10.1023%2FA%3A1009849309451; http://dl.acm.org/citation.cfm?id=593237.593329; http://hdl.handle.net/10906/79574; http://dx.doi.org/10.1023/A:1009849309451
• Palabra clave: Ingeniería de sistemas y comunicaciones; Aplicaciones musicales; Programación orientada a objetos (Computadores); Composición musical por computador; Systems engineering
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-nd/4.0/