C# Locrian Mode

What is the C# Locrian Mode?

Locrian is the seventh and darkest mode of the major scale, with both a ♭2 and a ♭5 that produce a diminished tonic triad — making it inherently unstable and restless. It's rarely used as a tonal center in traditional music, but metal and progressive players lean into that instability for intense, dissonant passages. Here's how the C# Locrian Mode lays out on the fretboard. This scale is enharmonically equivalent to Db Locrian.

Notes and Positions

The seventh mode - the darkest diatonic mode with a flat 5th. On bass, the fretboard view helps you visualize where the important tones sit for building lines across positions. Use a finger-per-fret approach first, then add shifts only when the line needs a wider range. In the key of C#, the notes are: C#, D, E, F#, G, A, B.

How to Use It

You'll often hear it in Metal, Jazz, and Modal. A good way to internalize the sound is to sing the root, then sing a few scale degrees before you play them.

Practice root-on-E and root-on-A boxes separately, then connect them with one clean position shift. Use the interactive fretboard above to spot repeats of the same note on different strings and frets.