Assertion: chord's interval | /r/HasProperty | half of an octave
Facets:
value: exactly
type: DEGREE
Source sentences:
text: The fact that a chord and its tritone substitution have the third and seventh in common is related to the fact that in 12 equal temperament, the 7:5 and 10:7 ratios are represented by the same interval, which is exactly half of an octave (600 cents) and is its own inversion.