Chord theory epic: functional harmony, secondary dominants, substitutions and diminished 7ths

Want to know more about chord theory and how harmony works? This tutorial takes a look at some of the more exotic chords you might find in a progression. It reviews the basics of diatonic chords and how to generate them and the different functions of important chords. Then I talk about secondary dominants, an interesting chord substitution and the notoriously tricksy diminished seventh chord.
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The jazz/blues piano tutorial I reference in this tutorial: • Blues/Jazz Piano GAMIF...
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