Rootless Voicing
The E♭GBD Voicing
The E♭GBD Voicing — known pedagogically as Box V — is the augmented major 7 shape (1–3–♯5–7) voiced as E♭–G–B–D. The cluster has a melodic-minor sound built in, and one fixed shape produces six chord interpretations depending on the bass: Lydian dominant, minor-major, altered, sus, and Lydian-augmented sounds all live inside the same four keys.
The FABE Voicing
Treble-register four-note shape (F–A–B–E). Twelve chord interpretations depending on the bass.
The BEFA Voicing
Bass-register cluster (B–E–F–A). Same four pitch classes as FABE, dropped an octave.
The A♭BDG Voicing
Diminished-family shape (A♭–B–D–G). Eight chord interpretations: four dom7♭9 + four dim7.
The E♭GBD Voicing
Augmented major 7 shape (E♭–G–B–D), known pedagogically as Box V. Six chord interpretations covering Lydian dominant, melodic minor, and altered sounds.
Bass clef
6 Chord Interpretations
The augmented major 7 shape (1–3–♯5–7) reinterprets as six different chords depending on what bass note sits underneath. The chord-tone column is the universal Box V label — the role E♭ (the shape's lowest note) plays inside that chord.
| # | Bass | Chord | E♭ is | Voicing formula |
|---|---|---|---|---|
| 1 | F | F7♯11 | ♭7 | ♭7 · 9 · ♯11 · 13 |
| 2 | B | B7alt (♭13, ♯9) | 3 | 3 · ♭13 · 1 · ♯9 |
| 3 | D | D7sus(♭9, 13) | ♭9 | ♭9 · 11 · 13 · 1 |
| 4 | A♭ | A♭9 | ♭5 | ♭5 · ♭7 · 9 · 11 |
| 5 | C | Cm(maj7) | ♭3 | ♭3 · 5 · 7 · 9 |
| 6 | E♭ | E♭∆(♯5) | 1 | 1 · 3 · ♯5 · 7 |
Transpose this voicing
The shape is portable — pick any root and the same intervallic structure moves with it. Use this widget to internalize how the E♭GBD voicing sits on the keyboard in every key.
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Bass clef
Same shape, transposed to E♭ as the new lowest note. Notes: E♭ – G – B – D.
Want the full picture? The voicings hub shows all four voicings side by side, plus the master modes-to-voicings reference that tells you which shape to reach for in any harmonic situation.