Locrian Mode
7th Mode of Major · H–W–W–H–W–W–W
The seventh mode of the major scale — the only mode with a diminished tonic chord, making it the most unstable and dissonant of all seven modes. Locrian is rare in tonal music but appears in metal, progressive jazz, and experimental composition.
The cool grays and steel palette on this page is inspired by music-color synesthesia — a neurological phenomenon where people perceive colors when hearing music. Synesthetes commonly associate Locrian mode with cool grays and steel, reflecting its unstable and unresolved tension.
About the Locrian Mode
It is the only mode where the tonic chord is diminished — meaning there is no stable home base. Compared to Phrygian, Locrian lowers just one additional note: the 5th. That single change destroys the perfect fifth of the tonic triad, making Locrian unable to establish a traditional tonal centre. Its primary practical use in jazz is over half-diminished (m7♭5) chords.
About the Locrian Mode
Locrian mode begins on the seventh degree of the major scale and is the most unusual of all seven modes. Its tonic triad is diminished — both the third and the fifth are flatted — making it tonally unstable and rarely used as a primary key center. Locrian creates extreme tension and dissonance that rarely resolves in traditional ways.
Musical Characteristics
- Diminished quality — flatted 2nd, 3rd, 5th, 6th, and 7th
- Deeply unstable and dissonant — the tonic chord is diminished
- Rarely used as a stable tonal center
- Works over half-diminished (ø7) chords
Common Uses
- Jazz: improvising over the ii∅7 chord in minor ii–V–i
- Metal and experimental music for extreme tension
- Horror and suspense film scores
- Brief unstable passages in jazz compositions
Common Chord Progressions
Famous Examples in Music
- "Army of Me" — Björk
- Many jazz "rhythm changes" bridge sections
- Experimental passages in Björk, Radiohead
- Horror film underscore passages
How Locrian Relates to the Major Scale
C Locrian uses the same notes as C♯ Major
Locrian mode in all 18 keys — click any card for full diagrams, fingerings, audio, and notation.