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. electrophones
8. electronic instruments

Anotations

Scope note:

Electronic instruments played by the performer's hand moving back and forth at different distances from an antenna rising vertically from the instrument; the pitch of the single tone produced varies with the distance of the hand from the antenna.