In his representative piece 'Haru no umi,' he used harmonic accompaniment, which was rarely used in heterophony ensemble of traditional Japanese music, in the ensemble with shakuhachi (to be exact, an instrument which is shorter than shakuhachi called isshaku-rokusun).
特に代表作「春の海」は、尺八（正確には一尺六寸という、尺八より小さい同属楽器）との合奏において、それまでのヘテロフォニーな邦楽の合奏には見られなかった和声的伴奏を駆使した。