Circles is an interactive performance created in collaboration with intermedia group Double Vision and the University of Arizona Schools of Music and Dance. During the event, dancers interacted with IR-sensors networked to computers running custom audio-video software. The mapping of the dancers’ movements therefore provided data to create video and sound in realtime. Additionally, an University of Arizona ensemble of musicians, Crossing Barriers Group, performed. In essence, Circles was a work experimenting with interactive and improvisational techniques.