His music teacher Tsuneo Fukushima was a famous harmonica player and inventor of minor scale harmonicas. After studying with him for less than a year, Kuo was made first player in the school's harmonica band.
當時的音樂老師是知名口琴家、小調口琴的創始者福島常雄，他隨福島常雄學習不到一年，已經在學校口琴合奏團擔任第一口琴。