Assertion: duet concertina | /r/CapableOf | produce same note
Facets:
value: unlike the anglo concertina
type: OTHER
value: on pull
type: LOCATION
Source sentences:
text: The Duet concertina is a family of concertinas, distinguished by being unisonoric (producing the same note on the push and pull of the bellows, unlike the Anglo concertina) and by having their lower notes on the left and higher on the right (unlike the English concertina).