Cokiyu is Yukiko Ito. She was born in Ehime, Japan in 1978. She finished her master degree of musicology study in a music design course of Kunitachi College of Music in 2002. From her student time till now, she creates the tape works using Max/MSP, the works for voice and woodwind instruments, and percussion instruments. In 2002, she started to do live performances in Tokyo.