Assertion: concertina's row | /r/AtLocation | different key
Facets:
value: on the right-hand side
type: LOCATION
value: on two-row anglos
type: OTHER
Source sentences:
text: On two-row anglos each row is in a different key, so the instrument is capable of playing in two keys only.
text: Each row of buttons is in a different key, most often C and G, although the lower-pitched combination of G and D is also common.
text: On the right-hand side, each row of buttons is in a different key.