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. reedpipes (confined aerophones)
10. [reedpipes with multiple pipes]
11. bagpipes

Anotations

Scope note:

Bagpipes invented in the early 17th century, and frequently referred to as Italian musettes. The complex pipes were bellows-blown and had four separate chanters, two of which were partly keyed, and two that were completely keyed, enabling the user to produce four-part music.