The SINE WAVE ORCHESTRA is consisted of Furudate Ken (born in 1981, lives in Tokyo), Jo Kazuhiro (born in 1977, lives in Tokyo), Ishida Daisuke (born in 1980, lives in Berlin), and Noguchi Mizuki (born in 1979, lives in Saitama). SWO is a participatory project that has been started since 2002. Under the concept that each participant produces one sine wave, the sea of sine waves appears. In shared time and space, the sine waves interfere with each other because of their pureness, and represent a communication among the participants as an abstract form.