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What is the relative minor key of C major?
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The universality and innate nature of music, and the pentatonic scale, as demonstrated by singer Bobby McFerrin.
The relative minor key of C major is A minor.1
Relative keys are defined as sharing the same key signature and the same set of notes, despite starting on different pitches. Because C major has no sharps or flats, its relative minor, A minor, also contains no accidentals. You can identify the relative minor of any major key by looking at the sixth tone of its major scale or by moving a minor third (three half steps) below the major tonic.1