One of the Noh large hand drum (ōtsuzumi) schools. The founder, Ishii Shōzaemon Shigenaga, was a disciple of the renowned master Higuchi Kyūzaemon, supported by Toyotomi Hideyoshi, and a performer of tesarugaku (Noh performed by amateurs or people from other performing arts) in Kyoto. During the Edo period, the school was based in Kyoto and received patronage from successive generations of the Kaga and the Owari clans. The Ishii School emphasizes not tightening the tension strings or drying the drum skin too much and claims not to use finger pads in theory. This playing style results in its characteristic comparatively soft tone. It is also the only school that distinguishes between four different types of sounds when striking the drum. The school retains many old techniques and calls and uses a complex musical style with numerous rhythm patterns (tegumi). Today's performers are mainly active in Kyoto and Nagoya.