G°
Triads · G root
G°
A tense, unstable triad built from two stacked minor thirds.
0 st3 st6 st
Notes in G°
GRoot
A#3rd
C#5th
G is one of the most used keys in Western music — the V chord in C, and home key for much of folk and country.
Identify the Chord Quality on G
Each chord below is played on G. Listen and identify whether you heard G°, Gm, G7, or another quality — the hardest and most useful ear training skill.
Diminished in All 12 Keys
Other Chords in G
Related Triads
About the G° Chord
The G° chord is a diminished chord built on G. It contains the notes G, A#, C# — the root, third, and fifth.
A tense, unstable triad built from two stacked minor thirds. Practising the G° chord across different voicings and contexts builds the harmonic recognition that lets you identify it instantly in any musical setting — whether in a band mix, a recording, or a live performance.