Gb7(b5) chord
The G-flat dominant seventh flat five chord (abbreviated "Gb7(b5) chord") is a four-note chord consisting of the notes G♭, B♭, D♭♭, and F♭. The chord is formed by lowering the fifth of a G-flat dominant seventh chord a half step.
Name
G-flat dominant seventh flat five chord
Notes
G♭ B♭ D♭♭ F♭
Intervals
1 3 ♭5 ♭7
Chord symbol
G♭7(b5)
Alternative symbol
G♭7b5
Type
tetrad (four-note chord)