As only a few exceptions, together with the 14th Tayu, Kiyochika KANZE, the 15th Tayu, Motoakira KANZE, who endeavored to collect Zeami Densho, published "Shudosho" (Learning the Way) in 1772 adding annotation and distributed to a part of Za-shu; and Munetake TAYASU, Motoaki's sponsor, transcribed a part of books owned by Kanze Tayu; and in 1818, Tanehiko RYUTEI obtained "Sarugaku Dangi" (Talks about Sarugaku), which was included in Ieyasu's collection and several men of letters around his transcribed it.
数少ない例外として、14代大夫の観世清親とともに世阿弥伝書の収集に尽力した15代大夫の観世元章が、1772年に『習道書』に注釈を加えて出版し、座衆の一部に配布したこと、元章の後援者であった田安宗武が観世大夫が所蔵する本の一部を書写したこと、そして1818年に柳亭種彦が家康の蔵書であった『申楽談儀』を手に入れ、周囲の文人数名が写本を作ったことが挙げられる。