Taiko is performed by a variety of types of groups in Japan, each with a slightly different designation, albeit difficult to distinguish at times. The term "pros" typically refers to performers who make a living teaching and performing taiko. Although opinions varied, there was general agreement that Matsuri-shu was professionals, possibly Bachi Holic, and to a lesser extent another group called Shien. "Group" and "team" refers to serious amateurs who typically meet weekly to practice, or have a specific performance for which they are preparing. "Circles" are common at colleges, are student-run and offer an opportunity to do everything from playing tennis to practicing taiko, but the primary purpose is for fun, and more time can be spent sitting around and chatting than actually performing. "Clubs" in junior high school or high school are school-sponsored, and therefore a bit more regulated.