F# Locrian

The F# Locrian mode (also written Gb) — F# G A B C D E — shown across the guitar neck.

Also written Gb Locrian. Gb and F# are the same pitch, though spelling it from Gb would need double accidentals (Gb Abb Bbb Cb Dbb Ebb Fb), which is why F# is the name in use.

Swipe the neck sideways to see the higher frets.

F# Locrian is the natural minor with the b2 and b5 — G and C. Those are the notes that give it its character.

The tool shows this from its parent key, G major, with F# marked as where Locrian begins, the same seven notes centered on G.