The G diminished seventh chord, often abbreviated as Gdim7 or G°7, is a four-note chord comprising the notes G, B♭, D♭, and F♭. This chord is constructed by stacking minor third intervals, resulting in a symmetrical structure where each interval between consecutive notes is a minor third. The diminished seventh chord is characterized by its tense and unstable sound, making it effective in creating a sense of anticipation or suspense in musical compositions. It is commonly used in various musical genres, including classical, jazz, and contemporary music, to add harmonic complexity and facilitate smooth voice leading between chords. The Gdim7 chord can be played in different inversions, such as B♭-D♭-F♭-G, D♭-F♭-G-B♭, and F♭-G-B♭-D♭, allowing for varied voicings and smooth transitions in musical progressions. Overall, the G diminished seventh chord is a valuable addition to a musician’s harmonic vocabulary, offering both functional and expressive possibilities.
Name: G diminished seventh chord
Symnonyms:: G fully diminished chord
Notes: G, B♭, D♭, F♭
Intervals: 1, ♭3, ♭5, 𝄫7
Chord symbol: Go7
Alternative symbols: Gdim7, Gdim, Go
Type: Tetrad (four-note chord)
G diminished seventh chord on the Staff
G diminished seventh chord on Piano
G diminished seventh chord on Guitar
G diminished seventh chord on Ukulele

Rowan Ellis is a musician and educator with a passion for exploring the language of harmony and melody. With years of experience across classical, jazz, and contemporary styles, Rowan breaks down music theory into clear, practical insights. His goal is to make chords and scales less intimidating and more inspiring for every musician.
