A♯ 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)A#(4)

Degree 2 · Degree 2B·E♯·A♯

Degree 3 · III(4)C#(4)

Degree 4 · IV(4)D#(4)

Degree 5 · V(4)E#(4)

Degree 6 · Degree 6F♯·B·E♯

Degree 7 · VII(4)G#(4)

Open in inversion explorer

I(4) · A#(4)Degree 2 · B·E♯·A♯III(4) · C#(4)IV(4) · D#(4)V(4) · E#(4)Degree 6 · F♯·B·E♯VII(4) · G#(4)