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