C Phrygian — Quartal voicings

Three-note stacks of fourths, one per scale degree — the open, ambiguous voicing-flavour McCoy Tyner and Bill Evans built modal-era jazz around (the 'So What' chord).

All 7 quartal voicings in sequence

Degree 1 · I(4)C(4)

Degree 2 · Degree 2D♭·G·C

Degree 3 · III(4)Eb(4)

Degree 4 · IV(4)F(4)

Degree 5 · V(4)G(4)

Degree 6 · Degree 6A♭·D♭·G

Degree 7 · VII(4)Bb(4)

Open in inversion explorer

I(4) · C(4)Degree 2 · D♭·G·C III(4) · Eb(4)IV(4) · F(4)V(4) · G(4)Degree 6 · A♭·D♭·G VII(4) · Bb(4)