Hornbostel - Sachs
type: ConceptScheme

Free aerophones
type: Concept
narrower: Displacement free aerophones
notation: 41

Displacement free aerophones
type: Concept
broader: Free aerophones
definition: The air itself is the vibrator in the primary sense. The vibrating air is not confined by the instrument. The air-stream meets a sharp edge, or a sharp edge is moved through the air. In either case a periodic displacement of air occurs to alternate flanks of the edge. Whip, sword-blade.
in scheme: Hornbostel - Sachs
notation: 411