F# Locrian — Plectrum Banjo

F# Locrian is 7 notes to the octave (modes family), drawn here across the Plectrum Banjo's CGBD strings with every F# marked, so home stays visible from anywhere in the pattern.

The most dissonant, unstable mode — the tonic chord is diminished (b5), making a true Locrian tonal center rare. Used for color and passing harmony.

Heard in: Metal riffs, jazz (half-diminished ø7 chords in ii°7 – V – i), horror and tension film scores.

The long neck puts the same note in more places than four strings usually offer, so these maps show the whole CGBD field and leave the choice of route to you.

Run it against a click at a tempo where every note gets the same weight. On a banjo an uneven scale is audible immediately — the instrument gives you no sustain to hide behind.