A#° chord on 6-String Guitar – Open Em

in Open Em (E-B-E-G-B-E) tuning · Also known as Open E minor, Cross-note E

Root

Type

Tuning

A#°

Diminished

Notes:A# · C# · E

easyfret 2

Piano Left hand Right hand

Fingerings (16)

A#° shapes as text

Frets	Fingers	Notes	Difficulty
x x x 3 2 0	– – – 2 1 –	x x x A# C# E	easy
6 2 x 3 5 x	4 1 – 2 3 –	A# C# x A# E x	hard
6 5 6 6 5 0	2 1 3 4 1 –	A# E A# C# E E	medium · barre on fret 5
x x 6 6 x 0	– – 1 2 – –	x x A# C# x E	easy
x 11 9 9 11 9	– 2 1 1 3 1	x A# C# E A# C#	medium · barre on fret 9
6 2 6 3 2 0	3 1 4 2 1 –	A# C# A# A# C# E	hard · barre on fret 2
6 2 x 6 5 x	3 1 – 4 2 –	A# C# x C# E x	hard
6 5 6 6 5 x	2 1 3 4 1 –	A# E A# C# E x	medium · barre on fret 5
6 x 0 6 x x	1 – – 2 – –	A# x E C# x x	easy
x 11 12 9 11 9	– 2 4 1 3 1	x A# E E A# C#	medium · barre on fret 9
6 2 6 6 2 0	2 1 3 4 1 –	A# C# A# C# C# E	hard · barre on fret 2
6 2 6 x 5 x	3 1 4 – 2 –	A# C# A# x E x	hard
6 5 0 6 5 0	3 1 – 4 2 –	A# E E C# E E	medium
6 x 0 6 x 6	1 – – 2 – 3	A# x E C# x A#	easy
x 11 9 9 11 0	– 3 1 2 4 –	x A# C# E A# E	medium
6 2 0 3 2 0	4 1 – 3 2 –	A# C# E A# C# E	hard

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 Em 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 Em E-B-E-G-B-E 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.