A° chord on 4-String Bass – Drop D

in Drop D (D-A-D-G) tuning

✕○12AD#C
A°
Diminished
Notes:A · C · D#
hard
Piano Left hand Right hand
AAACD#
ShapeFretsFingersNotesDifficulty
x 0 1 5– – 1 2x A D# Chard
7 6 7 53 2 4 1A D# A Cmedium
7 6 10 82 1 4 3A D# C D#hard
7 0 10 81 – 3 2A A C D#medium
10 0 10 82 – 3 1C A C D#medium
1 3 1 21 3 1 2D# C D# Amedium · barre on fret 1
7 6 x 53 2 – 1A D# x Chard
7 6 10 x2 1 3 –A D# C xhard
10 0 7 83 – 1 2C A A D#medium
x 0 10 8– – 2 1x A C D#medium
x 3 1 2– 3 1 2x C D# Amedium
x 6 7 5– 2 3 1x D# A Cmedium
10 6 7 84 1 2 3C D# A D#hard
7 x 10 81 – 3 2A x C D#hard
x 12 10 8– 3 2 1x A C D#hard
1 0 1 51 – 2 3D# A D# Chard

The A° chord (Diminished) is built from the notes A, C, D#. Below are playable fingerings for 4-String Bass – Drop D 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
♭56D#

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, D#.

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.