According to "Edo-jidai no Kinji Monogatari" (the Tales of Koto [a traditional Japanese string instrument] Players in the Edo Period) written by Shigeo KISHIBE, Shozan played the kokin (seven-string koto) and the koto for pleasure.
岸辺成雄著『江戸時代の琴士物語』によれば、古琴や琴も好んで奏でていたという。