Non-idiophonic interruptive instruments
type: Concept
notation: 412.2
broader: Interruptive free aerophones

Interruptive free aerophones
type: Concept
notation: 412
narrower: Non-idiophonic interruptive instruments
narrower: Idiophonic interruptive aerophones or reeds
definition: The air itself is the vibrator in the primary sense. In this group also are classed those reed instruments sounded by a flow of air in which the reed is the primary vibrator. The vibrating air is not confined by the instrument. The air-stream is interrupted periodically.
in scheme: Hornbostel - Sachs
broader: Free aerophones

Idiophonic interruptive aerophones or reeds
type: Concept
notation: 412.1
broader: Interruptive free aerophones

Hornbostel - Sachs
type: ConceptScheme

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