Quick Answer & Harmonic Definition

To play the G Diminished chord on guitar, find the notes G, A#, C# across the fretboard. The root G typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this triad chord shape.

Guitar Chord

Gdim Guitar Chord

Built from two stacked minor thirds. Creates maximum tension and instability. Learn the G Diminished chord on guitar with interactive fretboard, audio playback, and multiple voicings.

Notes
G – A# – C#
Intervals
0 – 3 – 6
Type
triad chord
G A# C#
E
A
D
G
B
e
3
5
7
9
12
3 notes · Standard (E A D G B E)

Playing the Gdim Guitar Chord

The Gdim chord is a diminished chord built on the root G. It contains 3 notes: G, A#, C#. On guitar, this chord can be played in multiple positions across the fretboard, from open shapes to barre chord voicings.

Built from two stacked minor thirds. Creates maximum tension and instability. For guitarists, mastering the Gdim chord unlocks many songs in the key of G.

Recommended Gdim Guitar Voicing

The interactive fretboard above shows a practical Gdim voicing. The chord notes (G, A#, C#) appear as highlighted positions. Tap any highlighted fret to hear that note, or click "Play Gdim" to hear the full chord.

Interval Structure of Gdim

Degree Interval Semitones Note in G
Root Root (R) 0 G
3rd Minor 3rd 3 A#
5th Tritone 6 C#

Common Progressions with Gdim on Guitar

  • I–IV–V: Gdim – Cdim – Ddim (foundation of blues and rock)
  • I–V–vi–IV: Gdim – D – Em – C (modern pop staple)
  • I–vi–IV–V: Gdim – Em – C – D (50s doo-wop)

Tips for Practicing Gdim on Guitar

Start by finding the root note G on the 6th and 5th strings. Build the chord shape from there. Practice transitioning between Gdim and nearby chords like C and D. Use slow, deliberate strums and check each string rings clearly.

Other G Guitar Chords

G
Major
Gm
Minor
G7
Dominant 7th
Gmaj7
Major 7th
Gm7
Minor 7th
Gaug
Augmented

Diminished Chord in All 12 Keys

Cdim C#dim Ddim D#dim Edim Fdim F#dim Gdim G#dim Adim A#dim Bdim
Virtual Guitar
Interactive fretboard
Gdim Piano
Piano chord diagram
G Scale
Notes that fit this chord
Songs
Find songs using Gdim

Knowledge Base & FAQs

Gdim Guitar Chord — FAQ

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

How do I play the Gdim chord on guitar?

To play the G Diminished chord on guitar, find the notes G, A#, C# across the fretboard.

The root G typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this triad chord shape.

What notes make up the Gdim guitar chord?

The G Diminished guitar chord contains 3 notes: G, A#, C#.

These are derived from the diminished interval formula applied to the root G.

What is the best guitar voicing for Gdim?

The most common guitar voicing for Gdim uses a root position with G on the 6th or 5th string.

The exact frets depend on your preferred voicing — the interactive fretboard above shows a recommended open or barre position shape.

Is Gdim a beginner-friendly guitar chord?

Gdim is a triad, making it accessible for beginners.

Focus on clean fretting of each 3 notes and strumming only the target strings.

What is a barre chord version of Gdim?

A barre chord version of Gdim uses your index finger pressed across all strings at a specific fret, with the remaining fingers forming the chord shape.

The root G determines the barre position on the 6th or 5th string.

What are common chord progressions with Gdim on guitar?

Gdim is widely used in jazz ii–V–I turnarounds, blues progressions, and modal funk vamps.

How does Gdim sound different on guitar vs piano?

The Gdim chord contains the same notes (G, A#, C#) on both instruments.

On guitar, the voicing depends on string selection and fret position, creating a different timbre. Guitar chords often include string-specific articulations like hammer-ons and pull-offs.

Can I play Gdim as an open chord on guitar?

Open voicings of Gdim require G to be playable within the first 3 frets.

If open shapes aren't available, use a barre chord voicing instead.

What is the difference between the Gdim chord on guitar and ukulele?

The Gdim chord contains the same notes (G, A#, C#) on both instruments.

However, the guitar has 6 strings in EADGBE tuning while the ukulele has 4 strings in GCEA tuning, so the finger shapes are completely different.

How do I practice transitioning to and from Gdim on guitar?

Practice moving between Gdim and its neighboring chords in the key of G major: C and D.

Use a metronome at a slow tempo (60 BPM) and focus on clean, simultaneous finger placement.