A#° chord on 6-String Guitar – Open B

in Open B (B-F#-B-F#-B-D#) tuning

✕✕✕321A#C#E
A#°
Diminished
Notes:A# · C# · E
medium
Piano Left hand Right hand
EA#A#A#C#
ShapeFretsFingersNotesDifficulty
x x x 4 2 1– – – 3 2 1x x x A# C# Emedium
x 4 2 4 5 x– 2 1 3 4 –x A# C# A# E xmedium
x 4 5 7 5 x– 1 2 4 3 –x A# E C# E xmedium
5 7 5 7 5 71 2 1 3 1 4E C# E C# E A#medium · barre on fret 5
11 7 11 10 x x3 1 4 2 – –A# C# A# E x xhard
11 10 11 10 11 102 1 3 1 4 1A# E A# E A# C#medium · barre on fret 10
x 4 x 4 2 1– 3 – 4 2 1x A# x A# C# Ehard
x 4 5 4 2 x– 2 4 3 1 –x A# E A# C# xmedium
x 4 5 7 x x– 1 2 3 – –x A# E C# x xmedium
x 7 5 7 5 7– 2 1 3 1 4x C# E C# E A#medium · barre on fret 5
11 10 11 7 x x3 2 4 1 – –A# E A# C# x xhard
x x 11 10 11 10– – 2 1 3 1x x A# E A# C#easy · barre on fret 10
x 4 2 x 2 1– 4 2 – 3 1x A# C# x C# Ehard
x 4 2 x 5 x– 2 1 – 3 –x A# C# x E xhard
x 4 x 7 5 7– 1 – 3 2 4x A# x C# E A#hard
x x 5 7 5 7– – 1 2 1 3x x E C# E A#medium · barre on fret 5

The A#° chord (Diminished) is built from the notes A#, C#, E. Below are playable fingerings for 6-String Guitar – Open B generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.

How the A#° chord is built

Formula: 1 · ♭3 · ♭5

DegreeSemitonesNote
10A#
♭33C#
♭56E

More A# chords

Other roots

See A#° in another tuning

What notes make up the A#° chord?

A#° is a Diminished chord built from the notes A#, C#, E.

How do I read the diagram?

Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.