Aiko was born in Tokyo, Japan and moved to Oregon when she was 18 to study English.
She started singing and playing guitar when she was 24. She first joined a folk-rock band, became a jazz DJ at a college radio station (KBVR-FM), and later formed her own eclectic folk/jazz improvisational trio, Played Twice while in Oregon.
Aiko moved to Seattle in 1993 and started performing her original music at local venues and festivals.(Bumbershoot, Seattle Art Museum, NW Folklife Festivals, Tractor Tavern, Sit and Spin, OK Hotel, On the Boards, etc).
Aiko has appeared on KUOW (National Public Radio) for live and recorded interviews on two different CDs, TCI Television in Seattle, KAOS radio in Olympia, KBCS radio in Bellevue/Seattle for live/interview shows, and KCMU (KEXP) Live Room and Sonarchy Radio, live shows.