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What is the relative major key of A minor?

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The relative major key of A minor is C major.12

In music theory, relative keys are defined by sharing the same key signature and the same set of notes, despite starting on different pitches. Both C major and A minor contain no sharps or flats, meaning they share the same notes and are considered relative to one another. You can visualize this relationship using the circle of fifths, which places relative major and minor keys together at the same position.1342