- The relative minor key shares the same key signature as its relative major key but has a minor tonic that is three half steps lower. For example, C major and A minor both have no flats or sharps in their key signature.
- There are three types of minor scales: natural, harmonic, and melodic. The harmonic scale raises the 7th note and the melodic scale raises both the 6th and 7th notes ascending and lowers them descending.
- The relative minor chord is formed by lowering the third of the relative major chord by a minor third interval of four half steps. So the relative minor chords of C major, G major, and F major are A minor, E minor,