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. percussion idiophones
11. percussion idiophones: hollow-bodied

Anotations

Scope note:

Percussion idiophones made from the ends of oil drums, cut to a relatively shallow depth, made concave, subdivided by grooves, and hammered so as to create up to 30 segments, each of which produces a tuned pitch when struck with a rubber-headed stick.