Gbdim7 chord
The G-flat diminished seventh chord (abbreviated "Gbdim7 chord") is a four-note chord consisting of the notes G♭, B♭♭, D♭♭, and F♭♭. The chord is formed by adding a diminished seventh to a G-flat diminished chord.
Name
G-flat diminished seventh chord
Synonym
G-flat fully diminished chord
Notes
G♭ B♭♭ D♭♭ F♭♭
Intervals
1 ♭3 ♭5 ♭♭7
Chord symbol
G♭o7
Alternative symbols
G♭dim7 G♭dim G♭o
Type
Tetrad (four-note chord)