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. metallophones

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Sound Devices
5. sound devices
6. sound devices by function
7. musical instruments
8. keyboard instruments

Anotations

Scope note:

Keyboard instruments having the form of a small upright piano in which metal plates (usually steel) suspended over resonating boxes are struck by hammers and sustained in a manner similar to piano action.