Voicing detail · Diminished7

A#dim7

A.k.a.Bbdim7, B♭dim7

Fingering · A#dim7Interactive
E
F
F#
G
G#
A
C#
C
C#
D
D#
E
G
G#
A
A#
B
C
E
D#
E
F
F#
G
A#
A#
B
C
C#
D
X
F
F#
G
G#
A
1
2
3
4
5

— About this chord

A#dim7 (A-sharp diminished seventh) creates an unsettled, anxious atmosphere that demands resolution. Commonly used in jazz as a chromatic passing chord leading to B major, and in classical contexts for heightened dramatic tension.

Intervals
1♭3♭56
Tuning
StandardE · B · G · D · A · E
Position
Frets 1 – 5
Tags
jazzclassicaltension