Rehearsal by the Ecosonic Ensemble at London College of Communication exploring the Ouija Board. The Ouija Board - a new form of group musical instrument. Based on the real-time video analysis of the shadows of a group of people, it reframes many of the conventions of traditional tactile instrumental control. It allows the relationship between sound material from loudspeakers and the embodied act of performance to be investigated more deeply. This occurs both in a formal research process and during performance, where the Ouija board acts as a bridge between acousmatic and traditional instrumental / vocal techniques. The tactile quality of traditional acoustic instruments is in contrast to this remote, shadowy form of engagement. It is a neg...