abstract: When dancers are granted agency over music, as in interactive dance systems, the actors are most often concerned with the problem of creating a staged performance for an audience. However, as is reflected by the above quote, the practice of Argentine tango social dance is most concerned with participants internal experience and their relationship to the broader tango community. In this dissertation I explore creative approaches to enrich the sense of connection, that is, the experience of oneness with a partner and complete immersion in music and dance for Argentine tango dancers by providing agency over musical activities through the use of interactive technology. Specifically, I create an interactive dance system that allows tango dancers to affect and create music via their movements in the context of social dance. The motivations for this work are multifold: 1) to intensify embodied experience of the interplay between dance and music, individual and partner, couple and community, 2) to create shared experience of the conventions of tango dance, and 3) to innovate Argentine tango social dance practice for the purposes of education and increasing musicality in dancers. / Dissertation/Thesis / Doctoral Dissertation Music 2017

Cette recherche porte un regard critique sur les interfaces de spatialisation sonore et positionne la composition de musique spatiale, un champ d’étude en musique, à l’avant plan d’une recherche en design. Il détaille l’approche de recherche qui est centrée sur le processus de composition de musique spatiale et les modèles mentaux de compositeurs électroacoustiques afin de livrer des recommandations de design pour le développement d’une interface de spatialisation musicale nommée Centor. Cette recherche montre qu’un processus de design mené à l’intersection du design d’interface, du design d’interaction et de la théorie musicale peut mener à une proposition pertinente et innovatrice pour chacun des domaines d’étude. Nous présentons la recherche et le développement du concept de spatialisation additive, une méthode de spatialisation sonore par patrons qui applique le vocabulaire spectromorphologique de Denis Smalley. C’est un concept d’outil de spatialisation pour le studio qui complémente les interfaces de composition actuelles et ouvre un nouveau champ de possibilités pour l’exploration spatiale en musique électroacoustique. La démarche de recherche présentée ici se veut une contribution au domaine du design d’interfaces musicales, spécifiquement les interfaces de spatialisation, mais propose aussi un processus de design pour la création d’interfaces numériques d’expression artistique. / This research takes a critical look at current sound spatialisation interfaces and places spatial music composition, traditionally studied in music research, at the forefront of a research in design. This thesis presents a research approach focused on understanding the spatial composition process and mental models of electroacoustic music composers in order to build a design brief for a new sound spatialisation software tool : Centor. This research combines the study of interface and interaction design with music theory in order to generate an innovative sound spatialisation method that is meaningful from both an interaction design and musical standpoint. We present the research and development process of additive spatialisation: a pattern based method that integrates aspects of spectromorphology, developed by Denis Smalley. The proposed spatilisation tool for in studio work is meant to complement current digital audio workstations and to offer new opportunities for spatial sound exploration in electroacoustic music. This work is a contribution to the field of new musical interface design, specifically for spatialisation but also, more broadly, suggests a design process that could be used for the creation of new digital tools for artistic expression.