Abstract
In this paper we discuss our approach to designing improvising music systems whose intelligence is centred around careful listening, particularly to qualities related to timbre and texture. Our interest lies in systems that can make contextual decisions based on the overall character of the sound field, as well as the specific shape and contour created by each player. We describe the history and paradigm of ‘expanded instrument’ systems, which has led to one instrumental system (GREIS) focused on manual sculpting of sound with machine assistance, and one improvising system (FILTER) which introduces the ability to listen, recognize and transform a performer’s sound in a contextually relevant fashion. We describe the different modules of these improvising performance systems, as well as specific musical performances as examples of their use. We also describe our free improvisation trio, in order to describe the musical context that situates and informs our research.
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