Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Sound Devices (hierarchy name)
5. sound devices (equipment)
6. [sound devices by acoustical characteristics]
7. membranophones
8. drums (membranophones)
9. struck drums
10. hourglass drums

Narrower term/s

• kotsuzumi
• otsuzumi

Anotations

Scope note:

Japanese hourglass drums having two heads of hide stretched over iron rings that project well beyond the body, laced to each other across the body with ropes. Players hold them by the ropes, relaxing and tightening their grip to alter the tension and thus adjust the pitch of the heads during play. Often used during performaces of Noh drama.