Assertion: circle | /r/HasProperty | essential tool
Facets:
value: for musicians
type: TRANSITIVE-OBJECT
value: in music theory
type: OTHER
Source sentences:
text: To summarize, the circle of fifths is an essential tool in music theory, and you’ll be surprised how often it comes in handy!
text: The Circle of Fifths is a diagram which is an essential tool for musicians.