One of the most widely used books on jazz harmony, its 14 chapters include exercises and assignments covering: Intervals, chords, inversions, modes, diatonic/modal chord progressions, the blues, lead sheets, song forms/melodic variations, secondary dominant chords, substitute dominant seventh chords/tri-tone subs, minor key harmony, modal interchange/minor blues, common chord progressions, voice leading, modulation, pentatonics/symmetrical scales, blues variations and rhythm changes.