Input (grade 13): In July 1968, Mizuki signed onto the Columbia Music Entertainment label and released his first single called "Kimi ni sasageru Boku no Uta", composed by Kanae Wada.
Output (grade 12): Ichiro Mizuki began his solo career in 1968, although his first single "Kimi ni sasageru Boku no Uta" was released as this song was composed by Kanae Wada.