Precision is the governing principle here. Richard Chartier works in the extreme low end of audibility, sculpting near-silent digital tones that shift almost imperceptibly across the stereo field — less heard than felt, like air pressure changing in a sealed room. Variable Dimensions continues his investigation into the spatial properties of sound itself, asking how small a gesture can be before it disappears entirely. Headphones help with the tiny differences in volume and position. Once your ears adjust, even a faint tone can seem quite vivid.