F Locrian Mode
F – Gb – Ab – Bb – Cb – Db – Eb
Formula:H-W-W-H-W-W-W
Intervals:P1-m2-m3-P4-d5-m6-m7-P8
Scale Degrees:1-♭2-♭3-4-♭5-♭6-♭7-8
Introduction
The F Locrian mode is the seventh mode of the Gb Major scale. It has a diminished quality with flatted second and fifth degrees, the most dissonant of the seven modes.
F Locrian Mode Notes
| Degree | Name | Note | Interval |
|---|---|---|---|
| 1 | Tonic | F4 | P1 |
| ♭2 | Supertonic | Gb4 | m2 |
| ♭3 | Mediant | Ab4 | m3 |
| 4 | Subdominant | Bb4 | P4 |
| ♭5 | Dominant | Cb5 | d5 |
| ♭6 | Submediant | Db5 | m6 |
| ♭7 | Leading Tone | Eb5 | m7 |
| 8 | Octave | F5 | P8 |
F Locrian Mode — Frequently Asked Questions
What notes are in the F Locrian mode?
F Locrian contains: F, Gb, Ab, Bb, Cb, Db, Eb. Seventh mode of Gb Major.
How does F Locrian differ from F Natural Minor?
Flatted 2nd (Gb) and flatted 5th (Cb).
What is the parent major scale?
Seventh mode of Gb Major.
How is F Locrian used in music?
Over Fm7b5. Metal, progressive jazz.
What chords are built from F Locrian?
Fdim, Gb, Abm, Bbm, Cb, Db, Ebm.
What songs use Locrian?
Progressive metal, experimental jazz.
Practice Tips
- Diminished tonic — most unstable.
- Over Fm7b5 in jazz.
- The flatted 5th (Cb/B) defines Locrian.
- Compare with F Phrygian.
- Metal riffs on F–Gb half step.
- All flats — distinctive shape.