It was originally an ensemble of kokyu and koto, but an ensemble with kokyu is seldom performed except by 'Kokufu Ongaku Kai' (the Traditional Japanese Music Association), a music association in the direct line of Yoshizawa Kengyo, because there are very few kokyu players.
本来は胡弓と箏の合奏曲であるが、胡弓奏者がきわめて少ないため、吉沢検校直系の音楽団体である「国風音楽会」以外では、胡弓入り合奏はあまり行なわれない。