A#° chord on 6-String Guitar – Open G

in Open G (D-G-D-G-B-D) tuning · Also known as Spanish, Taro Patch, Slack Key G

Root

Type

Tuning

A#°

Diminished

Notes:A# · C# · E

easybarre on fret 2

Piano Left hand Right hand

Fingerings (16)

A#° shapes as text

Frets	Fingers	Notes	Difficulty
x 3 2 3 2 2	– 2 1 3 1 1	x A# E A# C# E	easy · barre on fret 2
x 3 x 6 5 x	– 1 – 3 2 –	x A# x C# E x	hard
x x 8 6 5 8	– – 3 2 1 4	x x A# C# E A#	medium
8 6 8 9 x x	2 1 3 4 – –	A# C# A# E x x	medium
x x 8 9 11 11	– – 1 2 3 4	x x A# E A# C#	medium
x 9 11 9 11 11	– 1 2 1 3 4	x E C# E A# C#	medium · barre on fret 9
x 3 2 3 2 x	– 2 1 3 1 –	x A# E A# C# x	easy · barre on fret 2
x 6 x 3 5 x	– 3 – 1 2 –	x C# x A# E x	hard
x x 8 6 5 x	– – 3 2 1 –	x x A# C# E x	medium
8 9 8 6 x x	2 4 3 1 – –	A# E A# C# x x	medium
8 9 11 9 x x	1 2 4 3 – –	A# E C# E x x	medium
11 9 11 9 11 x	2 1 3 1 4 –	C# E C# E A# x	medium · barre on fret 9
x x x 3 2 2	– – – 3 1 2	x x x A# C# E	easy
8 x 8 6 5 x	3 – 4 2 1 –	A# x A# C# E x	hard
8 6 x 9 x x	2 1 – 3 – –	A# C# x E x x	hard
8 9 8 x 11 11	1 2 1 – 3 4	A# E A# x A# C#	hard · barre on fret 8

Max fret: 12

Fingerings shown: 16

The A#° chord (Diminished) is built from the notes A#, C#, E. Below are playable fingerings for 6-String Guitar – Open G 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

Degree	Semitones	Note
1	0	A#
♭3	3	C#
♭5	6	E

More A# chords

A#A#m A#7 A#+A#9 A#maj7 A#m7 A#7♯5 A#7♭5 A#6 A#m6 A#m7♭5 A#°7 A#sus2 A#sus4 A#add9 A#maj9 A#m9 A#5

Other roots

C°C#°D°D#°E°F°F#°G°G#°A°B°

See A#° in another tuning

Standard E E-A-D-G-B-E Half Step Down (Eb) D#-G#-C#-F#-A#-D#Drop D D-A-D-G-B-E Open D D-A-D-F#-A-D Open G D-G-D-G-B-D DADGAD (D Modal) D-A-D-G-A-D

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.