B♭m7♭5 chord on ukulele

B♭m7♭5 is B♭, D♭, F♭ and A♭. The easiest shape is 1-1-0-1. Press Play to hear it, then try it at half speed.

1-1-0-1 · open · easy

Notes: B♭ · D♭ · F♭ · A♭
Formula: 1 · ♭3 · ♭5 · ♭7
First shape: 1-1-0-1

How to play B♭m7♭5 on ukulele

Shape 1, 1-1-0-1, reading from the G string on the left:

A♭: index finger, 1st fret of the G string.
D♭: middle finger, 1st fret of the C string.
B♭: ring finger, 1st fret of the A string.
Leave the E string open: F♭.

Arch your fingers so their tips come down vertically. That keeps them off the open strings, which have to ring for the chord to sound complete.
On ukulele you strum all four strings. The top G string is tuned higher than the C, which is why ukulele chords sound bright and close.

Other ways to play B♭m7♭5

6-8-6-7: movable shape at the 6th fret, medium. Use it when the next chord sits nearby on the neck.
9-10-9-11: movable shape at the 9th fret, medium. Up the neck the chord gets thinner and brighter, a good contrast to the open version.

B♭m7♭5 chord changes

The chords B♭m7♭5 usually goes to, and what changes under your fingers.

E♭7 (the iiø7 of a minor key heads to V7): B♭m7♭5 (1-1-0-1) to E♭7 (3-3-3-4): your index finger lands on the G string, 3rd fret, your middle finger lands on the C string, 3rd fret, move the ring finger to the E string, 3rd fret, the pinky finger comes down on the A string, 4th fret. Nothing carries over, so drill it slowly, lifting and landing all fingers at once. Shared notes: B♭ and D♭. E♭7 on ukulele
Bmaj7 (I in B major): B♭m7♭5 (1-1-0-1) to Bmaj7 (3-3-2-2): your index finger lands on the E string, 2nd fret, the middle finger goes to the A string, 2nd fret, move the ring finger to the G string, 3rd fret, the pinky finger comes down on the C string, 3rd fret. No finger can stay, so practice lifting all of them together and landing the new shape as a unit. Listen for B♭, which stays put while the rest moves. Bmaj7 on ukulele
E♭m7 (iii in B major): B♭m7♭5 (1-1-0-1) to E♭m7 (3-3-2-4): your index finger lands on the E string, 2nd fret, your middle finger lands on the G string, 3rd fret, the ring finger goes to the C string, 3rd fret, the pinky finger comes down on the A string, 4th fret. No finger can stay, so practice lifting all of them together and landing the new shape as a unit. B♭ and D♭ carry over from one chord to the other. E♭m7 on ukulele

B♭m7♭5 is a half-diminished chord (minor seventh flat five). All 4 notes of B♭m7♭5 fit on the ukulele's four strings. Play it once strummed and once picked to hear the difference.

Practice B♭m7♭5 in two minutes

Arpeggiate 1-1-0-1 from the lowest string: A♭, D♭, F♭, B♭. Then strum it and listen for the same 4 notes together. Finish by moving between 1-1-0-1 and 6-8-6-7 to learn two positions of the same chord.

You may also see it as A♯m7♭5; nothing changes on the ukulele.

Where B♭m7♭5 shows up

B♭m7♭5 on guitar and piano

Switching instruments? Try B♭m7♭5 on piano or B♭m7♭5 on guitar, or compare them on the B♭m7♭5 chord page.

Close to B♭m7♭5

Other half-diminished chords

B♭m7♭5 on ukulele: questions

What notes are in B♭m7♭5 on ukulele?

B♭, D♭, F♭ and A♭. In the 1-1-0-1 shape the strings play A♭ (G string), D♭ (C string), F♭ (E string, open) and B♭ (A string).

What's the easiest way to play B♭m7♭5 on ukulele?

1-1-0-1, the first shape on this page. It uses open strings, so there is no barre to press.

Is B♭m7♭5 a barre chord on ukulele?

Not the usual shape: 1-1-0-1 needs no barre.

Which string does B♭m7♭5 start on?

In the 1-1-0-1 shape the lowest string you play is the G string at the 1st fret, which is A♭, the minor seventh.

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