G-flat Locrian scale
The G-flat Locrian scale is a seven-note scale consisting of the notes G♭, A♭♭, B♭♭, C♭, D♭♭, E♭♭, and F♭. The scale corresponds to a G-flat natural minor scale with the second and fifth degree lowered a half step.
The G-flat Locrian scale is a mode of the A-double-flat major scale. It contains the same notes but starts on the seventh degree of the major scale.