B♭ augmented chord on ukulele (B♭aug)

B♭aug is B♭, D and F♯. The usual shape is 3-2-2-1. Play it once at full speed, then at a quarter to hear every note.

3-2-2-1 · movable · medium

Notes: B♭ · D · F♯
Formula: 1 · 3 · ♯5
First shape: 3-2-2-1

How to play B♭aug on ukulele

Shape 1, 3-2-2-1, reading from the G string on the left:

B♭: index finger, 1st fret of the A string.
D: middle finger, 2nd fret of the C string.
F♯: ring finger, 2nd fret of the E string.
B♭: pinky finger, 3rd fret of the G string.

This shape uses your pinky. It feels weak at first; press with the tip and let the finger stay curved.
Strum with the pad of your index finger or thumb, all four strings, across the spot where the neck meets the body.

Other ways to play B♭aug

7-6-6-5: movable shape at the 5th fret, medium. Use it when the next chord sits nearby on the neck.
11-10-10-9: movable shape at the 9th fret, medium. Higher up the neck it sounds brighter; handy when another guitar is already playing a lower shape.

Moving between B♭aug and its neighbours

The chords B♭aug usually goes to, and what changes under your fingers.

E♭ (the raised fifth pushes up into the IV): B♭aug (3-2-2-1) to E♭ (0-3-3-1): your index finger stays put, your middle finger lands on the C string, 3rd fret, move the ring finger to the E string, 3rd fret. The two chords share B♭, which is why the change sounds smooth. E♭ on ukulele
F (V in B♭ major): B♭aug (3-2-2-1) to F (2-0-1-0): the index finger slides across to the E string at the same fret, the middle finger slides across to the G string at the same fret. F on ukulele
Gm (vi in B♭ major): B♭aug (3-2-2-1) to Gm (0-2-3-1): your index and middle fingers stay put, move the ring finger to the E string, 3rd fret. That makes it one of the quickest changes from this chord. Shared notes: B♭ and D. Gm on ukulele

B♭aug is an augmented triad: two major thirds stacked, with a raised fifth. All 3 notes of B♭aug fit on the ukulele's four strings, with one of them doubled. Play it once strummed and once picked to hear the difference.

A short B♭aug drill

Before strumming, play 3-2-2-1 note by note: B♭ then D then F♯ then B♭. A dead note tells you exactly which finger to fix. Then switch to 7-6-6-5 and back four times without looking at your hand.

You may also see it as A♯aug; nothing changes on the ukulele.

Where B♭aug shows up

B♭aug on guitar and piano

B♭aug on guitar and piano uses the same 3 notes in a different layout. See all three together.

Next to try on ukulele

Other augmented chords

B♭aug on ukulele: questions

What notes are in B♭aug on ukulele?

B♭, D and F♯. In the 3-2-2-1 shape the strings play B♭ (G string), D (C string), F♯ (E string) and B♭ (A string), so B♭ is doubled.

What's the easiest way to play B♭aug on ukulele?

In standard tuning B♭aug can't use open strings. Begin with 3-2-2-1. It uses 4 fingers and no barre, and in many songs a capo can take over part of the work.

Is B♭aug a barre chord on ukulele?

Not usually: 3-2-2-1 needs no barre.

Which string does B♭aug start on?

In the 3-2-2-1 shape the lowest string you play is the G string at the 3rd fret, which is B♭, the root.

Shapes and sound are generated from the notes B♭, D and F♯ and tested automatically. Updated September 2026.