@prefix hornbostelandsachs: <http://www.mimo-db.eu/HornbostelAndSachs/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

hornbostelandsachs:311
  skos:notation "421.23" ;
  skos:definition "The air itself is the vibrator in the primary sense. The standing waves are significantly confined within the instrument itself. A narrow duct directs the air stream against the sharp edge of a lateral orifice. The duct is formed by an internal baffle (natural node, block of resin) and an external tied-on cover (cane, wood, hide). American Plains, S. E. Asia, Indonesia."@en ;
  skos:prefLabel "Flutes with duct formed by an internal baffle with an external cover"@en ;
  skos:inScheme <http://www.mimo-db.eu/HornbostelAndSachs#> ;
  skos:broader hornbostelandsachs:280 ;
  a skos:Concept .

<http://www.mimo-db.eu/HornbostelAndSachs#>
  skos:prefLabel "Hornbostel - Sachs"@en ;
  a skos:ConceptScheme .

hornbostelandsachs:280
  skos:notation "421.2" ;
  skos:prefLabel "Flutes with duct or duct flutes"@en ;
  a skos:Concept ;
  skos:narrower hornbostelandsachs:311 .