SazMate

B♭ Diminished 7th Chord (B♭dim7)

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

B♭dim7
Notes
B♭D♭F♭A𝄫
Formula
1 – ♭3 – ♭5 – 𝄫7

B♭dim7 on guitar

Open position · most common
x-1-2-0-2-0
Fret 6
6-7-8-6-8-6
Fret 11
x-13-11-12-11-12

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

B♭dim7 on ukulele

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

B♭dim7 on piano

Other B♭ chords

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

Diminished 7th chords in other keys

Cdim7C♯dim7Ddim7E♭dim7Edim7Fdim7F♯dim7Gdim7A♭dim7Adim7Bdim7

About the B♭ Diminished 7th chord

Diminished seventh chords stack minor thirds all the way up, so the same shape repeats every three frets. They create strong, dramatic tension. B♭dim7 is built from the root (B♭), minor third (D♭), diminished fifth (F♭), diminished seventh (A𝄫).

Frequently asked questions

What notes are in the B♭ Diminished 7th chord?

The B♭dim7 chord is made of B♭, D♭, F♭, A𝄫: the root, minor third, diminished fifth, diminished seventh.

How do you play B♭dim7 on guitar?

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

How do you play B♭dim7 on piano?

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