Androgyn is an interactive piece for two saxophone players and Macintosh computer. It uses a real-time score, delivered to the performers on a video monitor, which is determined by analysis of performance data. Aspects of the performance are also used to control parameters of signal processing performed by the computer. All the pitch material is derived from a single 12-tone row, which becomes the basis of the chords over which the performers improvise. In doing so, the piece attempts to unify various traditional contrasts, such as those between art and mathematics, and male and female gender roles.