In this chapter we mainly concentrate on two “dominant” progressions: (1) progressions down a fourth; and (2) secondary (or applied) dominants. From your music theory, you may have learned about V of V chords (an example of a secondary dominant). Secondary dominants usually introduce chromaticism, and often propel the music forward strongly.
In this chapter we’ll explore chord substitutions that move up or down in thirds – mostly down thirds. These harmonic substitutions will add smoothness, warmth, variety, and richness to your songs.