He gained a name for himself as one of the most distinguished artists of the late Muromachi period by compiling many of the theories of his forerunners in works such as "Kansubon Sosetsu Hitsu Onkyoku Densho" (Scrolled book of Noh melodies by Sosetsu) for posterity, appearing in Sosetsu's talk about the secrets of the arts in "Genki Keicho Noh Bunsho" (the Book of Noh during the Genki and Gencho periods), which was traditionally an heirloom of the Hosokawa family, and so on.
またそれ以外にも、多くの先人の説を伝書にまとめて後代に残したほか（『巻子本宗節筆音曲伝書』など）、細川家に伝来した『元亀慶長能聞書』に宗節の芸談が記されるなど、室町後期を代表する名人としてその名を残した。