sound performance/installation
valve / membrance -recent version by Keisuke Oki, Minoru Sato, ASUNA
Sep.20th at Happy New Ears 2008 in Kortrijk (Belgium)
"Valve/Membrance" by Keisuke Oki, Minoru Sato, and ASUNA is an experimental project of the sound art concerning the network. They construct a material and / or an electric network by using the air flow outputted from the air pump as a source. Wind instruments and reed organs that are connected with vibrating pipes. The wind instruments equip the membrance to accumulate the air flow and to increase the air pressure. Oki operates the valves that control the air flow and make the sounds of wind instruments and a reed of each organ delicately. The reed organ, whose mechanism is exposed, works as the energetic body integrating each reed. It is actually 'organs' that breathe, vibrate and output energy flexibly. The sound is vibrations of not only a reed by the air pressure, but also the integrating reeds by own power (a suction motor). So it is practically tuned by ASUNA as the energetic body. The organ's vibrations are picked up with the microphones, and sent to the glass tubes with a self-made amplifier. The electric network, the valve as electric resistance, and the membrance of the speaker that creates physical vibration. Sato's system, which networks one glass tube to another glass tube, emphasizes the natural resonance of the glass tube itself and forms feedback in the space. By repeating these processes, the entire concert place finally becomes the organization of the "valve and membrance" that breathes, vibrates and sends off energy, and plays music as the vibrating network.