Assertion: concertina's range | /r/HasProperty | octave
Facets:
value: roughly
type: DEGREE
Source sentences:
text: 46-button Stagi Hayden Duet is G, in the sense that the right side goes down to C and up to the D two octaves above, so in the key of G you can play a tune with an "authentic" range (in the octave consistently above the final), "plagal" range (roughly an octave, both below and above the final), or "mixed" range (wider range, both below and above the final).
text: "plagal" range (roughly an octave, both below and above the final), or "mixed" range (wider range, both below and above the final).