Hornbostel - Sachs
type: ConceptScheme

Valve trumpets with long air column (more than 2 m)
type: Concept
broader: Valve trumpets
definition: The air itself is the vibrator in the primary sense. The standing waves are significantly confined within the instrument itself. The air-stream passes through the player's vibrating lips, so gaining intermittent access to the long air column which is to be made to vibrate. The tubular body has a bore profile that is predominantly cylindrical. The body can be lengthened or shortened by connecting or disconnecting auxiliary lengths of tube. Most valve trombones.
in scheme: Hornbostel - Sachs
notation: 423.233.2

Valve trumpets
type: Concept
narrower: Valve trumpets with long air column (more than 2 m)
notation: 423.233