Relative key

From Wikipedia, the free encyclopedia

In music, the relative minor of a particular major key (or the relative major of a minor key) is the key which has the same key signature but a different tonic, as opposed to parallel minor or major, respectively. For example, G major and E minor both have a single sharp in their key signature; so we say that E minor is the relative minor of G major. The relative minor of a major key always has a tonic a minor third lower.

A complete list of relative minor/major pairs in order of the circle of fifths is:

Key signature Major key Minor key
B\flat, E\flat, A\flat, D\flat, G\flat, C\flat, F\flat C flat major A flat minor
B\flat, E\flat, A\flat, D\flat, G\flat, C\flat G flat major E flat minor
B\flat, E\flat, A\flat, D\flat, G\flat D flat major B flat minor
B\flat, E\flat, A\flat, D\flat A flat major F minor
B\flat, E\flat, A\flat E flat major C minor
B\flat, E\flat B flat major G minor
B\flat F major D minor
C major A minor
F\sharp G major E minor
F\sharp, C\sharp D major B minor
F\sharp, C\sharp, G\sharp A major F sharp minor
F\sharp, C\sharp, G\sharp, D\sharp E major C sharp minor
F\sharp, C\sharp, G\sharp, D\sharp, A\sharp B major G sharp minor
F\sharp, C\sharp, G\sharp, D\sharp, A\sharp, E\sharp F sharp major D sharp minor
F\sharp, C\sharp, G\sharp, D\sharp, A\sharp, E\sharp, B\sharp C sharp major A sharp minor

Together with moves to the dominant (fifth scale degree) or sub-dominant (fourth scale degree), modulations to the relative minor or major are the most common in tonal music


[edit] Finding the relative major or minor

To find the relative minor of a particular key go down a minor third (or 3 half steps) from the tonic of the major key. Example: If your major key is C major. Going down a minor third from the note C will land you on note A. So, "a" minor is the relative minor of C major.

To find the relative major of a particular key go up a minor third (or 3 half steps) from the tonic of the minor key. Example: If your minor key is e minor. Going up a minor third from the note E will land you on note G. So, G major is the relative major of e minor.