Abstract
The author's current research has involved the development of an interactive performance system named ‘Milieu’, for use with a solo improvising musician. The detail of the performance system architecture developed as part of the study will not be described here; however, the author would like to discuss aspects of the design that one could perhaps regard as representing a paradigm shift in performance environments and provide an overview of how the system is used. Viewing musical improvisation in the light of psychology and cognitive science, this article will explicate the rationale behind the development of the software-based audiovisual interface, the design of which is based on Di Scipio's eco-systemic principles. The article explores the potential of an audio-visual performance architecture to provide a conceptual tool for a performing musician with which to challenge conventional modes of improvisational behaviour.