Measure involves a ticking clock suspended in the middle of the installation space, and an interactive acoustic processing system triggered and controlled by movements around the clock. The clock's ticking is amplified and fed through an acoustic processor whose parameters are modified by the dynamics of gestures made by the gallery visitors in the proximity of the clock. Initially, with no movement, the straight sound of the clock is heard. Small, initial movements cause slight disturbances in the rate of flow of time, as represented by the ticking. Slightly higher levels of movement bring the ticking into self-syncopation, and beyond. Significant movement in the presents of the clock causes radical mutations of the ticking sound as the sound processor simulates the acoustic effect of the walls collapsing in and rushing out around the dynamics of the gesture. At its extreme, the measured pace of the ticking falls apart into a chaos out of which a resonant tone emerges, the pure expression of the virtual space's acoustics, under the stimulus of the by now obscured ticking. After the visitor(s) have left, the clock settles into its steady ticking.