Assertion: concertina's key | /r/HasProperty | white keys on a piano
Facets:
value: on a piano
type: LOCATION
Source sentences:
text: It's arranged sort of like a piano so that the middle keys are the natural keys like the white keys on a piano, and the outer keys are the accidental keys, like the black keys on a piano.
text: It's arranged sort of like a piano so that the middle keys are the natural keys like the white keys on a piano, and the outer keys are the accidental keys, like the black keys on a piano.