Eric Miller and Patrick Quinn's are live from Wave Farm and the WGXC Acra Studio to present "Limen." Limen explores the dimensions of liminality, or a passing through the threshold between distinct phases, afforded through the use of electromagnets. Binary signals are used to rapidly pulse magnets on and off, resulting in an analog field. The presentation of various materials to this field produces a wide range of sonic output. Proximity to steel instruments yields acoustic excitation; proximity to dynamic microphones and radios yields audible interference patterns. Throughout this performance + piece, a pre-composed sequence of pulses will be presented through the magnets, creating a dynamic, yet pre-determined electromagnetic field. The performers are free to interact with this field in an improvisatory manner, adjusting parameters of input sources and modifying their proximity to the electromagnets. Several recordings of improvised sessions will be woven together for the broadcast, with the resulting piece existing in the liminal spaces between digital/analog synthesis, improvisation/composition, and real-time/offline production. More at: http://speculationseditions.com/#028