Imperial Princess Shushi was good at calligraphy, while Enshi was good at koto (a long Japanese zither with thirteen strings) of So (a long Japanese zither with thirteen strings) as there were many players of koto and biwa (Japanese lute) around Imperial Princess Shushi ("Eiga Monogatari").
内親王は書に長じ、御側には琴、琵琶を善く弾く人々が多く侍っていたため、延子も筝の琴に優れていたという（『栄花物語』）。