Piano Chord Progressions: Tri-Tone Chord Substitution

Piano Chord Progressions: Tri-Tone Chord SubstitutionThe mysterious "tri-tone substitution" has puzzled musicians down through the years. I used it for 20 years without knowing the name of it -- I called it "half-step slides from above". It adds interest to your piano playing and chord progressions by substitution the chord that is a tri-tone away from the root of the V7 chord.