Rehearsal is a responsive system based on motion tracking technology which was made possible with the Kinect Sensor and visualized with vvvv software. The participant is invited into an environment where their silhouette is abstracted and projected onto opposing surfaces composed of lines. These lines suggest a rigid and regimented architecture. However once the participant begins to move, the rigid lines become fluid and respond, warp and fluctuate while sounds begin to resonate in response to the participants gestures. The data collected from the gestures of participants is forwarded to a synthesizer over Pure Data and processed according to the user interaction.