Four String Bass · Half-Step Down (E♭A♭D♭G♭)

B+7♭13B Augmented 7th Flat 13th

A♯Root
Dtone
F♯tone
G♯tone
F♯tone

Formula 7 · ♭3 · 5 · 6 · 5  ·  Notes A♯ · D · F♯ · G♯ · F♯

How to play it

B+7♭13 fingering positions

Half-Step Down (E♭A♭D♭G♭), low E on the left. Each dot is colour-coded by note — the ringed dot is the root. Numbers below show the fret per string (x = muted).

B Augmented 7th Flat 13th guitar chord — 8th position (8 11 8 9) fretboard diagram in Half-Step Down (E♭A♭D♭G♭)
Read it as tab

B+7♭13 guitar tab

The same voicings in tablature — high e on top, low E on the bottom. Each fret number is colour-coded by note; the ringed number is the root, × means don’t play that string.

B Augmented 7th Flat 13th guitar tab — 8th position (8 11 8 9) in Half-Step Down (E♭A♭D♭G♭)
Sound

How B+7♭13 sounds

Consonance
1/ 5
Brightness
DarkBright
Character

Moods & genres

Moods
unstabletense
Genres
jazz
Theory

Notes & relationships

NotesA♯ · D · F♯ · G♯ · F♯
Formula (scale degrees)7 · ♭3 · 5 · 6 · 5
Explore

More ways to play B Augmented 7th Flat 13th

Browse the rest of the B chords in this tuning, or open B+7♭13 in the app for every voicing.

B+7♭13 in other tunings:

StandardDrop DD Standard

See & hear B+7♭13 in Chordology

The app shows every voicing across guitar, piano, bass, banjo and ukulele — in any tuning, with a capo, and you can play every chord back. All offline.

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