← E♭ Altered on Tenor Saxophone
E♭ Altered — 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 · Degree 1E♭·A𝄫·D♭
Degree 2 · Degree 2F♭·B𝄫·E♭
Degree 3 · III(4)Gb(4)
Degree 4 · Degree 4A𝄫·D♭·G♭
Degree 5 · Degree 5B𝄫·E♭·A𝄫
Degree 6 · VI(4)Cb(4)
Degree 7 · VII(4)Db(4)