← A♭ Phrygian Dominant on Viola (treble clef)
A♭ Phrygian Dominant — 7th chords
Four-note stacks of thirds on each degree — root, 3rd, 5th, 7th. The added 7th gives jazz, gospel, and modern classical voicings their distinctive colour.
All 7 seventh chords in sequence
Degree 1 · I7Ab7
Degree 2 · IImaj7Bbbmaj7
Degree 3 · iii°7C dim7
Degree 4 · iv(maj7)DbmMaj7
Degree 5 · v°7Ebm7b5
Degree 6 · VI+maj7Fbmaj7#5
Degree 7 · vii7Gbm7