Rootless Voicing
The BEFA Voicing
The BEFA Voicing (also known as the Type B / Position B box voicing) is the bass-register form of the same F–A–B–E cluster, dropped an octave so the voicing reads as B–E–F–A from the bottom. The shape and the twelve chord interpretations are identical to FABE — only the register changes.
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.
Bass note
Bass clef
12 Chord Interpretations
Same four pitch classes — twelve different chords depending on what the bass plays. Click a row to set the bass note.
| # | Bass | Chord | Voicing formula |
|---|---|---|---|
| 1 | C | Cmaj7 | 7 · 3 · 11 · 13 |
| 2 | D♭ | D♭7alt | ♭7 · ♯9 · 3 · ♭13 |
| 3 | D | Dm6/9 | 13 · 9 · ♭3 · 5 |
| 4 | E♭ | E♭7alt | ♭13 · ♭9 · 9 · ♯11 |
| 5 | E | Esus(♭9) | 5 · 1 · ♭9 · 11 |
| 6 | F | Fmaj7♯11 | ♯11 · 7 · 1 · 3 |
| 7 | G♭ | G♭m(maj7) | 11 · ♭7 · 7 · ♭3 |
| 8 | G | G7 | 3 · 13 · ♭7 · 9 |
| 9 | A♭ | A♭7alt | ♯9 · ♭13 · 13 · ♭9 |
| 10 | A | A9 | 9 · 5 · ♭13 · 1 |
| 11 | B♭ | B♭maj7 | ♭9 · ♯11 · 5 · 7 |
| 12 | B | Bm7♭5 | 1 · 11 · ♯11 · ♭7 |
Want the full picture? The voicings hub shows all three voicings side by side, plus the master modes-to-voicings reference that tells you which shape to reach for in any harmonic situation.