Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. sound device components
7. aerophone components
8. [pipes: aerophone components]
9. melody pipes
10. chanters

Anotations

Scope note:

Double-reed instruments used as practice instruments by musicians before eventually playing the Scottish Highland bagpipes. They have a narrow bore and a less stiff reed than traditional bagpipe chanters, thus their sound is about one octave lower.