  In this paper we describe our efforts towards the development of live
performance computer-based musical instrumentation. Our design criteria include
initial ease of use coupled with a long term potential for virtuosity, minimal
and low variance latency, and clear and simple strategies for programming the
relationship between gesture and musical result. We present custom controllers
and unique adaptations of standard gestural interfaces, a programmable
connectivity processor, a communications protocol called Open Sound Control
(OSC), and a variety of metaphors for musical control. We further describe
applications of our technology to a variety of real musical performances and
directions for future research.
