Sankyoku is a collective name for three instruments of jiuta shamisen, koto, and kokyu specialized by the blind musicians belonging to Todo-za, as well as a collective name for jiuta, koto music, and kokyu music played with these instruments.
三曲は、当道座に属する盲人音楽家たちが専門とした地歌三味線、箏、胡弓の三種の楽器の総称、またそれらの音楽である地歌、箏曲、胡弓楽の総称。