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: solid-bodied
12. percussion plaques
13. lithophones

Anotations

Scope note:

Stones that emit ringing tones when struck. This refers to those that are found as a geological anomaly in the landscape; for those that are found and used specifically in a musical context, use 'rock gongs,' though often there is no distinction.