Assertion: concertina's button | /r/CapableOf | produce different note
Facets:
value: on draw
type: LOCATION
Source sentences:
text: The most obvious characteristic of this particular system is the fact that each individual button produces a different note, depending on whether the bellows themselves are being expanded or compressed.
text: Each button produces a different note on the push and draw of the bellows (so there are TWO notes per button).
text: Each button produces a different note on the push and draw of the bellows (so there are TWO notes per button).