Introduction to harmony -- Triads in root position -- Chord progressions using primary triads -- Cadences -- Secondary triads -- First inversions of triads -- Harmonization of melodies -- Passing notes -- Two - and three - part harmony -- Second inversions of triads -- Dominant seventh chords -- Other unessential notes -- Modulation -- Secondary sevenths -- Dominant discord -- Suspensions -- Chromatic sevenths and ninths -- Chromatic sixths -- Extraneous modulation -- Harmonization of basses