In 1966 Kuo went to Japan and enrolled as a graduate composition student at National Tokyo University of Fine Arts and Music under professors Tomojiro Ikeuchi and Akio Yashiro.
1966 年郭芝苑赴日，成為國立東京藝術大學音樂系作曲科研究生，受教於池內友次郎、矢代秋雄兩位教授。