Home / Chords / B♭ Augmented (B♭aug)

B♭ Augmented (B♭aug) Chord Guitar

The moveable A-string augmented shape down at the 1st fret.

The B♭ major triad with the 5th raised from F to F♯.
The 5th-string moveable grip played low, near the nut.
Commonly written A♯aug in sharp keys — the same chord either way.
Identical in notes to Daug and F♯aug.

Root3rd5th

Not played

E6th string

FretMuted

Finger—

Root

ABass5th string

Fret1

Finger1 index

5th

D4th string

Fret4

Finger4 pinky

Root

G3rd string

Fret3

Finger3 ring

3rd

B2nd string

Fret3

Finger3 ring

5th

e1st string

Fret2

Finger2 middle

NotesA# – F# – D

Formula1 – 3 – ♯5

Voicingx14332

TonesA#×2·D×1·F#×2

Hear It For Yourself

This chord sounds even better than it looks.

Load B♭ Augmented (B♭aug) onto an interactive fretboard, hear every note, and build it into a progression.

Play B♭aug in the Studio →

Questions about B♭ Augmented (B♭aug)

What notes are in a B♭ Augmented (B♭aug) chord?

A B♭ Augmented (B♭aug) chord contains the notes A#, F#, D. It is built from the augmented formula 1 - 3 - ♯5, with Bb as the root.

Is B♭aug the same as A♯aug?

Yes. A♯ and B♭ are the same pitch, so the chords are identical on the fretboard. Which spelling you use follows the key: sheet music in B♭ major or G minor writes B♭aug, while music moving through sharp keys writes A♯aug. The shape and the sound don't change.

Embed this chord

Add the B♭ Augmented (B♭aug) diagram to your own site — paste this snippet where you want it to appear.