One loudspeaker and three microphones are placed opposite eachother. The volume is turned high, and feedback occurs. Three performers manipulate the feedback by shifting foam-board panels around, creating new spaces with every movement and therefore also changing the space, in which the feedback can resonate. Depending of the placement of the shields and of the pitches of the feedback, the sound is processed by the computer. A choreography of movements is designing the sound of the composition. A performance for three foam-board panels, three microphones, one loudspeaker, computer and three performers. This performance was developed as a part of a search for renoise.