The Odaiko is a large Japanese barrel-shaped drum. Taut skins are stretched across each end of the body, though usually only one end is struck. It sometimes rests on a stand and is played with two sticks whose ends may be padded. The odaiko is used as a bass drum in many styles of Japanese music, especially in the theater and for some types of festive dances.
| Family | 
| Percussions | 
| Pitch range | 
| None. | 
| Material | 
| Wooden body, with two calf-skin membranes. | 
| Size | 
| Variable : up to 6 ft (1.80 m) in diameter, but usually between 24-36 in (60-90 cm). | 
| Origins | 
| The odaiko was once used as a battle signal, and now features in Kabuki theater (a popular form of theater that has evolved from 17th-century aristocratic theater), Zen Buddhist ritual, and traditional dances. | 
| Classification | 
| Membranophone: an instrument that produces its sound by the vibration of a stretched skin. | 
| And also... | 
| Nothing else. | 
