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 double reed]
11. [reedpipes with double reed: with conical bore]
12. shawms

Anotations

Scope note:

Conical, double reed instruments of South India, similar to shanais. The pipe of a nagaswaram contains seven equidistant finger-holes with no thumb-hole. Five more holes are located near the distal end of the pipe, which are used for tuning purposes, and may also be filled with wax.