In 1974, Kuo finished the score of a young people's opera, Cowboy and Weaver Girl. Back then Taiwan's musical community had only a vague idea of what an opera was; the idea that a composer in Taiwan could write one himself seemed like something out of a fairy tale.
1974 年，郭芝苑完成青少年歌劇〈牛郎織女〉，當時台灣音樂界對於「歌劇」僅有模糊概念，要國人自製歌劇更是天方夜譚。