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A diminished seventh (A°7) chord on guitar

Notes
ACE♭G♭
Formula
1♭3♭5𝄫7

How to play A°7 on guitar

  1. Shape 1 · 1st position

    A°7 chord on guitar, shape 1: first position, with open strings, notes A, C, Eb, Gb

  2. Shape 2 · fret 5 · barre

    A°7 chord on guitar, shape 2: barre at fret 5, notes A, C, Eb, Gb

  3. Shape 3 · fret 7

    A°7 chord on guitar, shape 3: from fret 7, notes A, C, Eb, Gb

  4. Shape 4 · fret 4

    A°7 chord on guitar, shape 4: from fret 4, notes A, C, Eb, Gb

  5. Shape 5 · fret 5 · barre

    A°7 chord on guitar, shape 5: barre at fret 5, notes A, C, Eb, Gb

  6. Shape 6 · fret 4 · barre

    A°7 chord on guitar, shape 6: barre at fret 4, notes A, C, Eb, Gb

Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. x = do not play the string, o = open string. The coloured dot is the root (A). The same shapes work on acoustic, classical and electric guitar.

A°7 inversions on guitar

The same A°7 with another chord note in the bass (the lowest note that sounds). The notes stay the same, but the colour changes, and the bass line can move by step from one chord to the next. In a chord symbol, the bass comes after the slash.

  1. 3rd (C) in the bass1st inversion · A°7/C

    A diminished seventh, A°7/C, x3424xA°7/C2314CG♭AE♭metronotuner.com

  2. 3rd (C) in the bass1st inversion · A°7/C

    A diminished seventh, A°7/C, 8-9-10-8-10-8A°7/C81234CG♭CE♭ACmetronotuner.com

  3. 5th (E♭) in the bass2nd inversion · A°7/Eb

    A diminished seventh, A°7/Eb, xx1212A°7/E♭1324E♭ACG♭metronotuner.com

  4. 5th (E♭) in the bass2nd inversion · A°7/Eb

    A diminished seventh, A°7/Eb, x6757xA°7/E♭52314E♭ACG♭metronotuner.com

  5. 7th (G♭) in the bass3rd inversion · A°7/Gb

    A diminished seventh, A°7/Gb, 20121xA°7/G♭3241G♭AE♭ACmetronotuner.com

  6. 7th (G♭) in the bass3rd inversion · A°7/Gb

    A diminished seventh, A°7/Gb, 234242A°7/G♭12314G♭CG♭AE♭G♭metronotuner.com

Jazz voicings

About the diminished seventh chord

The diminished seventh splits the octave into four equal parts: the same shape repeats every 3 frets and the chord has four possible names. A sound of drama and suspense; the classic passing chord of choro, samba, tango and silent-film scores.

Notes and intervals of A°7

A°7 (A diminished seventh) is built from 4 notes. Each one fills a degree of the chord:

  • A · 1 · root
  • C · ♭3 · minor third
  • E♭ · ♭5 · diminished fifth
  • G♭ · 𝄫7 · diminished seventh

Other A chords

Diminished seventh: other roots

Arpeggio

Frequently asked questions

How do you play the A°7 chord on guitar?

A°7 (A diminished seventh) has 6 fingerings on this page, from easiest to hardest. Each diagram shows the fingers, the open strings (o) and the strings you do not play (x), and you can hear every shape.

What notes are in A°7?

The notes of A°7 are A, C, E♭, G♭. The formula is 1 · ♭3 · ♭5 · 𝄫7: root, minor third, diminished fifth, diminished seventh.

What does A°7 mean?

A°7 is the chord symbol for A diminished seventh. The diminished seventh splits the octave into four equal parts: the same shape repeats every 3 frets and the chord has four possible names. A sound of drama and suspense; the classic passing chord of choro, samba, tango and silent-film scores.

Can I play A°7 on other instruments?

Yes. A°7 also has a page on ukulele, on cavaquinho, with the fingerings for each instrument.

A°7 on other instruments

All guitar chords