SazMate

B♭ Half-Diminished Chord (B♭m7♭5)

Notes: B♭, D♭, F♭, A♭. Tap any diagram to hear it.

B♭m7♭5
Notes
B♭D♭F♭A♭
Formula
1 – ♭3 – ♭5 – ♭7

B♭m7♭5 on guitar

Open position · most common
x-1-2-1-2-0
Fret 6
6-7-6-6-9-6
Fret 11
x-13-11-13-11-12

Strings from low (left) to high (right). Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × = don’t play, ○ = open string.

B♭m7♭5 on ukulele

Open position · most common
1-1-0-1
Fret 6
6-8-6-7
Fret 9
9-10-9-11

B♭m7♭5 on piano

Other B♭ chords

B♭B♭mB♭7B♭maj7B♭m7B♭sus2B♭sus4B♭dimB♭augB♭6B♭m6B♭9B♭add9B♭7sus4B♭dim7

Half-Diminished chords in other keys

Cm7♭5C♯m7♭5Dm7♭5E♭m7♭5Em7♭5Fm7♭5F♯m7♭5Gm7♭5A♭m7♭5Am7♭5Bm7♭5

About the B♭ Half-Diminished chord

Half-diminished chords (minor seven flat five) are the ii chord of minor keys and a staple of jazz progressions. B♭m7♭5 is built from the root (B♭), minor third (D♭), diminished fifth (F♭), minor seventh (A♭).

Frequently asked questions

What notes are in the B♭ Half-Diminished chord?

The B♭m7♭5 chord is made of B♭, D♭, F♭, A♭: the root, minor third, diminished fifth, minor seventh.

How do you play B♭m7♭5 on guitar?

The most common fingering is x-1-2-1-2-0, from the low E string to the high E string (x = don’t play that string, 0 = open string).

How do you play B♭m7♭5 on piano?

Press B♭, D♭, F♭, A♭ together. In root position the lowest note is B♭.