C# Locrian — Tenor Banjo

C# Locrian is 7 notes to the octave (modes family), drawn here across the Tenor Banjo's CGDA strings with every C# 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.

Fifths put seven semitones between neighbouring open strings, so a scale spreads three or four notes to a string and one fingering repeats across every pair — learned once, moved sideways.

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.