Which notes are in the Gdim7 chord?

Gdim7 contains the notes G, A#, C# and E. Relative to the root these are the degrees 1 – ♭3 – ♭5 – ♭♭7.

How many ways can you play Gdim7?

Minory lists a single guitar fingering for Gdim7.

Is the Gdim7 chord hard to play?

Gdim7 requires a barre, so it can feel demanding at first. Keeping the index finger straight and pressing from the wrist rather than the thumb makes it noticeably easier.

G diminished 7th · Guitar

Gdim7 Chord on Guitar

The Gdim7 chord (G diminished 7th) is built from the notes G, A#, C# and E. The guitar fingering for it is shown below.

Chord diagrams

Gdim7starts at fret 5

Fingering

string 6 (E): muted
string 5 (A): muted
string 4 (D): fret 5 — index finger
string 3 (G): fret 6 — ring finger
string 2 (B): fret 5 — middle finger
string 1 (E): fret 6 — little finger

Notes in this chord

G
A♯
C♯
E

Degrees: 1 – ♭3 – ♭5 – ♭♭7

How to play

Gdim7 can be played with open strings on guitar, which makes it an accessible shape for beginners. Strings marked ○ ring open, while strings marked ✕ are muted.

Theory behind the chord

Diminished seventh chords divide the octave into four equal minor thirds. Every inversion sounds the same, so a single shape can be slid up the neck to lead into several different keys. On Gdim7 this structure sits on the root G, so the degrees 1 – ♭3 – ♭5 – ♭♭7 map onto G, A#, C# and E.

Frequently asked questions

Which notes are in the Gdim7 chord?: Gdim7 contains the notes G, A#, C# and E. Relative to the root these are the degrees 1 – ♭3 – ♭5 – ♭♭7.
How many ways can you play Gdim7?: Minory lists a single guitar fingering for Gdim7.
Is the Gdim7 chord hard to play?: Gdim7 requires a barre, so it can feel demanding at first. Keeping the index finger straight and pressing from the wrist rather than the thumb makes it noticeably easier.

Practise Gdim7 on your phone

Minory bundles the full chord library with a tuner, metronome and repertoire notebook — and it all works offline.