what is taiko?
A percussion instrument
Taiko
Taiko have been developed into a broad range of percussion instruments that are used in both Japanese folk and classical musical traditions. 
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Taiko [SEP] Categorization
Taiko have been developed into a broad range of percussion instruments that are used in both Japanese folk and classical musical traditions. An early classification system based on shape and tension was advanced by Francis Taylor Piggott in 1909. Taiko are generally classified based on the construction process, or the specific context in which the drum is used, but some are not classified, such as the toy den-den daiko. With few exceptions, taiko have a drum shell with heads on both sides of the body, and a sealed resonating cavity. The head may be fastened to the shell using a number of different systems, such as using ropes.