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B♭ Diminished Chord (B♭dim)

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

B♭dim
Notes
B♭D♭F♭
Formula
1 – ♭3 – ♭5

B♭dim on guitar

Open position · most common
x-1-2-3-2-0
Fret 5
x-x-8-6-5-6
Fret 8
x-x-8-9-11-9

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

B♭dim on ukulele

Open position · most common
3-1-0-1
Fret 4
6-4-6-7
Fret 7
9-10-9-7

B♭dim on piano

Other B♭ chords

B♭B♭mB♭7B♭maj7B♭m7B♭sus2B♭sus4B♭augB♭6B♭m6B♭9B♭add9B♭7sus4B♭m7♭5B♭dim7

Diminished chords in other keys

CdimC♯dimDdimE♭dimEdimFdimF♯dimGdimA♭dimAdimBdim

About the B♭ Diminished chord

Diminished chords are built from two minor thirds. They sound tense and unstable and are often used as passing chords. B♭dim is built from the root (B♭), minor third (D♭), diminished fifth (F♭).

Frequently asked questions

What notes are in the B♭ Diminished chord?

The B♭dim chord is made of B♭, D♭, F♭: the root, minor third, diminished fifth.

How do you play B♭dim on guitar?

The most common fingering is x-1-2-3-2-0, from the low E string to the high E string (x = don’t play that string, 0 = open string).

How do you play B♭dim on piano?

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