This page shows the relationship between the C Major Scale and its relative minor key, and the three forms of the minor key scales. The relative minor key is based on the sixth degree of its relative major scale. This relationship is inherent in all major keys and their relative minor keys. Notice how different the minor key scale tone chords are from the major scale tone chords. In Major keys the I chord and the IV are major, in the Harmonic minor the I and IV are minor, and in the Melodic minor the I is minor and the IV is dominant 7th. However, in all major and minor keys the V chord is a dominamt 7th chord. If You have questions regarding in home / office guitar instruction please go back a page and click on the contact button.