In music, 'relative keys' are the major scale and that have the same ( equivalent), meaning that they share all of the same notes but are arranged in a different order of and . A pair of major and minor scales sharing the same key signature are said to be in a relative relationship.
For example, F major and D minor both have one flat in their key signature at B♭; therefore, D minor is the relative minor of F major, and conversely F major is the relative major of D minor. The tonic of the relative minor is the submediant scale degree of the major scale, while the tonic of the relative major is the mediant degree of the minor scale. The minor key starts three semitones below its relative major; for example, A minor is three semitones below its relative, C major.
The relative relationship may be visualized through the circle of fifths.
Relative keys are a type of closely related keys, the keys between which most modulations occur, because they differ by no more than one accidental. Relative keys are the most closely related, as they share exactly the same notes. The major key and the minor key also share the same set of chords. In every major key, the triad built on the first degree (note) of the scale is major, the second and third are minor, the fourth and fifth are major, the sixth minor and the seventh is diminished. In the relative minor, the same triads pertain. Because of this, it can occasionally be difficult to determine whether a particular piece of music is in a major key or its relative minor.
E, A, D, G, C, F, B | F-flat major | D-flat minor |
B, E, A, D, G, C, F | C-flat major | A-flat minor |
B, E, A, D, G, C | G-flat major | E-flat minor |
B, E, A, D, G | D-flat major | B-flat minor |
B, E, A, D | A-flat major | F minor |
B, E, A | E-flat major | C minor |
B, E | B-flat major | G minor |
B | F major | D minor |
None | C major | A minor |
F | G major | E minor |
F, C | D major | B minor |
F, C, G | A major | F-sharp minor |
F, C, G, D | E major | C-sharp minor |
F, C, G, D, A | B major | G-sharp minor |
F, C, G, D, A, E | F-sharp major | D-sharp minor |
F, C, G, D, A, E, B | C-sharp major | A-sharp minor |
C, G, D, A, E, B, F | G-sharp major | E-sharp minor |
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