Scales that share the same key signature (i.e. use the same notes). The scales start on different notes, leading to a different arrangement of whole and half steps — one corresponding to the pattern of a major scale, the other corresponding to the pattern of a minor scale. This close relationship makes switching between these two key areas relatively easy from a compositional perspective. In this case, both the C Minor and E-flat Major scales contain three flats (B-flat, E-flat, and A-flat).
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