These influences led Kengyo YOSHIZAWA to learn and research the oldest koto pieces, known as 'kumiuta,' and gagaku (ancient Japanese court music) under Shuraku HAZUKA, a gagaku musician, to devise a new tuning based on that of the Japanese harp, and to compose many koto-oriented pieces including 'Kokin-gumi' and 'Shinkokin-gumi.'
吉沢検校もその影響を受け、古い時代の箏曲である「組歌」や、さらには雅楽家羽塚秋楽に雅楽を学んで研究し、楽箏の調弦にヒントを得た新調弦を考案、「古今組」「新古今組」をはじめとして箏本位の曲を多く作曲した。