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. chordophone components

Anotations

Scope note:

Ridges of hard material; typically wood, ivory, plastic or metal inserted at the junction of the neck and headstock of chordophones, chiefly guitars, which maintains both the proper height and lateral spacing of the strings over the fretboard.