A° chord on 6-String Guitar – Ostrich

in Ostrich (D-D-D-D-D-D) tuning

Root

Type

Tuning

A°

Diminished

Notes:A · C · D#

Piano Left hand Right hand

Fingerings (0)

A° shapes as text

Shape	Frets	Fingers	Notes	Difficulty

Max fret: 12

Fingerings shown: 16

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

More A chords

A Am A7 A+A9 Amaj7 Am7 A7♯5 A7♭5 A6 Am6 Am7♭5 A°7 Asus2 Asus4 Aadd9 Amaj9 Am9 A5

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 Ostrich D-D-D-D-D-D

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.