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The Locrian mode is one of the seven musical modes derived from the major scale. It is often considered the most dissonant and least used mode in Western music, but understanding its chords can open new creative possibilities for composers and musicians.
Understanding the Locrian Mode
The Locrian mode starts on the seventh degree of the major scale. For example, in the C major scale, the B Locrian mode includes the notes B, C, D, E, F, G, and A. Its distinctive sound comes from its unique interval structure, which includes a diminished fifth and a minor second.
Constructing Locrian Chords
Chords built from the Locrian mode are typically diminished or minor with altered qualities. The basic triad in Locrian is a diminished triad, and extended chords often include diminished or minor intervals. These chords create a tense, unstable sound characteristic of the mode.
Basic Locrian Triad
The primary triad in Locrian is:
- Bm (B, D, F)
This is a diminished triad, built from the root, minor third, and diminished fifth.
Extended Chords in Locrian
Extended chords often include the minor seventh or diminished ninth to add color. Examples include:
- Bm7b5 (B, D, F, A)
- F (F, A, C) — the minor third of the mode
Practice Examples
Try constructing chords on each degree of the Locrian mode to familiarize yourself with its sound. For example, in B Locrian:
- Root: B
- Second: C
- Third: D
- Fourth: E
- Fifth: F
- Sixth: G
- Seventh: A
Build chords on each of these roots, focusing on the diminished qualities and altered intervals characteristic of the mode.
Summary
The Locrian mode offers a unique tonal palette with its diminished and dissonant qualities. Mastering its chords can enhance your harmonic vocabulary and inspire new musical ideas.