Sandii met Makoto Kubota in 1976, when he was a guest on her NHK TV show and afterward joined his band "Yuyake Gakudan" ("Sunset Gang") as a backup singer. Makoto was an accomplished musician with broad influences, and the collaboration went on to be critically acclaimed, though never quite achieving the popular success expected. The music of The Sunset Gang was very influenced by blues, Southern and West Coast rock, but later they became increasingly interested in Hawaiian and Okinawan music. At this time Sandii also became friends with the future members of the Yellow Magic Orchestra, frequent collaborators with the Sunset Gang; Haruomi Hosono naming her "Sandii" because of the connection with Hawaii. However, until 1980 Sandii used a variety of names for different session work e.g. "Sandra Hohn", "Sandi A. Hohn", even "Sandy Ayako".