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. aerophones
8. reeds (aerophones)
9. free reeds
10. mouth organs

Anotations

Scope note:

Motuh organs of Laos and Thailand, consisting of a set of bamboo pipes grouped in two rows and graduated from longest to shortest, held together by a windchest they pierce through. The reeds of copper or silver are mounted in the pipe walls within the windchest, and the fingerholes are cut in the pipes within fingers' reach above the windchest.