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
G7(b5)
Alternative symbol
G7b5
Type
tetrad (four-note chord)

Gb7(b5) chord on piano

Gb7(b5) chord on guitar

Gb7(b5) chord on ukulele

Gb7(b5) chord on the staff