Sets of free reeds
notation: 412.132
type: Concept
narrower: Sets of free reeds with flexible air reservoir, with keyboard

Sets of free reeds with flexible air reservoir, with keyboard
notation: 412.132-62-8
broader: Sets of free reeds
in scheme: Hornbostel - Sachs
type: Concept
definition: Reed instruments that are free aerophones are sounded by a flow of air in which the reed is the primary vibrator. In sets of free reeds the air-stream is directed against a set of lamellae, setting them in periodic vibration to interrupt the stream intermittently. The lamellae vibrate through a closely-fitting slot. The instrument is tuned by mechanical action on the lamellae. Each reed may have a resonator in which the air vibrates only in a secondary sense, not producing the sound. The instrument has a flexible air reservoir. The mechanism admitting air to the reeds is operated by a keyboard.

Hornbostel - Sachs
type: ConceptScheme