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. idiophones
8. struck idiophones
9. directly struck idiophones
10. concussion vessels

Anotations

Scope note:

Concussion instruments consisting of a pair of small shallow cup-shaped pieces of hardwood, strung together, hollow sides facing each other, on a cord which loops around the player's thumb. The two pieces are clicked together by the fingers. Usually two pairs are played together, one higher-pitched than the other.