There are several other types of taiko that differ based on size and function. These include the nagadou-daiko (miya-daiko) used in festivals; the o-daiko, the largest of the taiko drums; the chu-daiko which is a size between that of the nagadou-daiko and the o-daiko; the wa-daiko, which can be flat or on a slanted stand; the eitetsu okedo-daiko, which is a miniature version of the okedo-daiko; the hira-daiko, which is a flat drum hung horizontally on a frame; and the uchiwa-daiko, a “fan” drum that consists of a metal hoop with a hide stretched across it2.
Taiko are traditionally accompanied by a wooden flute and a small hand drum called tsutsumi.
Reference
1. http://web-japan.org/kidsweb/master/taiko/1-his02.html
2. http://users.lmi.net/taikousa/dictionary.html