Ben Neill will demonstrate the mutantrumpet, a hybrid electro-acoustic instrument. The capabilities of the mutantrumpet are designed to erase the boundaries between acoustic and electronic musical creation and performance. It is both an expanded acoustic instrument and an electronic controller capable of interacting with audio and video simultaneously. The demonstration will explore the multi-faceted possibilities that are offered by the mutantrumpet in several brief, wide ranging musical examples composed and improvised by Neill. Interactive video performance techniques and collaborations will be integrated into the excerpts. The aesthetics of live intermedia performance will be discussed along with a technical overview of the interface and associated software applications Junxion and RoSa from STEIM, Amsterdam. Reflections on the development of a virtuosic performance technique with a hybrid instrument and influences from collaborators Robert Moog, David Behrman, Ralph Abraham, DJ Spooky and others will be included in the presentation.