B augmented 7th flat 9th guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 21 playable shapes

About the chord

B augmented 7th flat 9th guitar chord

The B augmented 7th flat 9th augmented 7th flat 9th chord blends the augmented triad with a minor seventh and flat ninth C, producing a complex, dramatic tension. Its dissonant, unresolved sound is ideal for jazz and film scoring.

Root note: B
Quality: augmented 7th flat 9th
Chord tones: 5
Playable shapes: 21

Chord tones

BD♯F𝄪AC

Notes & Intervals

Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.

B Unison (Root) 1

The root anchors the chord and defines its tonal center.

D♯ Major Third 3

This note defines the chord's major quality and brings brightness to the sound.

F𝄪 Augmented Fifth ♯5

The raised fifth adds lift, drama, and a more unsettled color.

A Minor Seventh ♭7

The minor seventh adds bluesy or jazzy tension that wants to move onward.

C Minor Ninth ♭9

The flat ninth adds sharper tension and a more dramatic clash.

Related Articles

Articles that reference this chord and explain how to use it in your playing.