<field> starts from the principle that sounds can be generated from the electromagnetic fields omnipresent in the environment. In this performance, residual electric signals, imperceptible to the eyes and ears, are picked up by electromagnetic transducer microphones and become the materials of the work. The sound and light composition emerges through a continuous movement of plugging and unplugging between the panels. And through <field>performance, objects and body which are composition factors of the work are changed into unsubstantial and floating power that can be hardly heard.