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