Guitar chord · Sevenths
G diminished 7th chord on guitar
312020 · Open position
All 6 shapes, tab & fingering ↓
6 ways to play Gdim7 on guitar, with finger positions, tabs and step-by-step instructions.
Symmetrical and very tense — every note is a minor 3rd apart.
Gdim7 is the vii°7 chord in G♯ minor.
- Notes
- GB♭D♭F♭
- Formula
- 1♭3♭5𝄫7
- Built from
- root · minor 3rd · diminished 5th · diminished 7th
Guitar
Standard tuning (E A D G B E) · 6 voicings · E string on the left · Other tunings →
How to play it · Open position
- 6th string (low E): 3rd fret, pinky finger (4) G
- 5th string (A): 1st fret, index finger (1) B♭
- 4th string (D): 2nd fret, middle finger (2) F♭
- 3rd string (G): play open G
- 2nd string (B): 2nd fret, ring finger (3) D♭
- 1st string (high E): play open F♭
Tablature
e|--0---| B|--2---| G|--0---| D|--2---| A|--1---| E|--3---|
Top line is the high E string. x = don’t play, 0 = open string.
Every Gdim7 note on the guitar neck
Bright dots are the selected voicing — the rest are other places you can find the same chord tones.
Tips for playing Gdim7 on guitar
On guitar, Gdim7 has an open-position shape, 312020, using four fingers alongside the open strings.
Notice the F♭ in Gdim7 (G B♭ D♭ F♭): each note of the chord takes its own letter (G–B–D–F), so the diminished 7th has to be written F♭ rather than E — the same key on a piano, spelled to fit the chord.
