Hornbostel - Sachs
type: ConceptScheme

Sets of flutes with internal duct
type: Concept
narrower: Sets of dissimilar flutes with internal duct
notation: 421.222

Sets of dissimilar flutes with internal duct
type: Concept
broader: Sets of flutes with internal duct
definition: The air itself is the vibrator in the primary sense. The standing waves are significantly confined within each flute, where a narrow duct directs the air stream against the sharp edge of a lateral orifice. Two or more flutes of more than one kind (open, partly-stopped or stopped) are combined to form a set.
in scheme: Hornbostel - Sachs
notation: 421.222.4