One of his works called "Yaegoromo" (An Eight-Fold Garment) was too difficult even for ISHIKAWA himself to play and lost hearts and minds of kengyos to be nearly obsolete.
作品の一つ『八重衣』は、あまりにも難しく石川本人にすら弾けないほどであったため、検校たちの支持を得られず廃曲になりかけた。