Also, in "Hyakki yagyo emaki"(picture scroll of Hyakki yagyo) from Muromachi Period, since a speter of koto is depicted, it is said that Sekien has depicted kotofurunushi on the basis of "Hyakki yagyo emaki".
また室町時代の『百鬼夜行絵巻』にも琴の妖怪が描かれていることから、石燕はこれをもとに琴古主を描いたとの説もある。