E Tritone Substitution
ii – bII7 – I progression in E major
E Tritone Substitution — ii – bII7 – I
The E ii–bII7–I tritone substitution (F#m – F – E) replaces the dominant V with a chord a tritone away, creating a chromatic, mysterious color. With seventh voicings (F#m7 – F7 – EMaj7), it delivers one of the most sophisticated sounds in jazz harmony.