Assertion: accordion's reed | /r/HasProperty | selected
Facets:
Source sentences:
text: REEDS of Swedish steel are selected, hand-finished, carefully assembled and tuned by craftsman to assure the instruments powerful singing vibrance.
text: In an acoustic accordion, sounds are produced by reeds that vibrate with airflow generated by the movement of the bellows; the resistance of the bellows constantly varies, depending on how many reeds are selected and how many notes are played at once.