Assertion: accordion's reed | /r/HasProperty | fixed in diatonic button accordion
Facets:
Source sentences:
text: In the diatonic button accordion, reeds are fixed in pairs so that one note sounds when air moves in, and a different one when air moves out.  
text: In the diatonic button accordion, reeds are fixed in pairs so that one note sounds when air moves in, and a different one when air moves out.