Assertion: bagpipe's sound | /r/HasProperty | produced
Facets:
value: by filling the bag
type: MANNER
value: primarily
type: DEGREE
Source sentences:
text: As a wind instrument, the bagpipe belongs to the class of aerophones (whose sound is produced primarily by causing a body of air to vibrate, without the use of strings or membranes), where it is specified as a composite reed pipe.
text: At some point, it was found that if a tongue was cut a little towards or away from one of the knots or natural nodes of a straw, and the player inserted the straw to the full length into his mouth and blew, a sound of superior quality could be produced.
text: The sound of the bagpipes is produced by filling the bag by blowing or pumping bellows.