Locrian 6 Mode on Guitar: Notes, Chords & Examples

  • May 21, 2026

Locrian 6 is a dark, unstable, and slightly “wrong in a good way” mode.

It has the classic Locrian ingredients:

  • b2 for tension
  • b3 for minor color
  • b5 for diminished darkness
  • b7 for a half-diminished sound

But it also has a natural 6, which gives the mode a strange flash of brightness inside an otherwise tense sound.

That natural 6 is what makes Locrian 6 different from regular Locrian. Instead of sounding purely bleak, it has a more exotic, fusion-like, progressive quality. For guitarists, it works especially well for dark riffs, angular lead lines, and half-diminished chord vamps.

Think of it as:

Locrian darkness with a surprising melodic lift.

It is not a common pop or rock mode, but it can be very useful for progressive metal, fusion, film-score-style writing, and adventurous songwriting.

Formula

The interval formula for C Locrian 6 is:

1 b2 b3 4 b5 6 b7

Compared to the C major scale:

C D E F G A B

C Locrian 6 lowers the 2nd, 3rd, 5th, and 7th:

C Db Eb F Gb A Bb

The most important color tones are:

  • Db — the b2, tense and dark
  • Gb — the b5, diminished and unstable
  • A — the natural 6, the note that separates this from regular Locrian
  • Bb — the b7, giving the mode its half-diminished flavor

Notes in C

The notes of C Locrian 6 are:

C Db Eb F Gb A Bb

On guitar, pay attention to the relationship between Gb and A. That gap creates an augmented second, which gives the mode some of its exotic character.

This is one reason the mode can sound less “ordinary minor” and more progressive, cinematic, or fusion-oriented.

The Chord That Defines the Mode

The defining chord of C Locrian 6 is:

Cm7b5(add13)

Or, with more of the full modal color:

Cm7b5(b9, 11, 13)

Built from the mode, the full chord tones are:

C Eb Gb Bb Db F A

That gives us:

1 b3 b5 b7 b9 11 13

The core chord is:

C Eb Gb Bb

That is Cm7b5, also called C half-diminished.

But the note that really reveals the mode is A, the natural 6 or 13.

Regular C Locrian would have Ab. C Locrian 6 has A natural, which creates a more open, mysterious, and slightly brighter tension against the diminished chord.

So the best “home chord” for this mode is:

Cm7b5(add13)

Why?

Because it includes the essential Locrian sound:

  • C = root
  • Eb = minor 3rd
  • Gb = flat 5
  • Bb = flat 7

And it adds the defining modal color:

  • A = natural 6 / 13

You can also add Db as a b9 for extra tension, but be careful. On guitar, too many close dissonances can sound muddy unless voiced clearly.

Chord Progressions

Because C Locrian 6 is unstable, modal progressions usually work best when you keep C as a pedal tone, drone, or repeated riff note.

You want the listener to feel that C is “home,” even though the home chord itself is tense.

Progression 1: Dark Fusion Vamp

iø13 - IV7 - bVmaj7 - iø13

In C:

Cm7b5(add13) - F7 - Gbmaj7 - Cm7b5(add13)

This progression highlights the mode beautifully.

The Cm7b5(add13) gives you the core Locrian 6 sound. The F7 chord emphasizes the natural 6 of the mode, because A is the 3rd of F7. Then Gbmaj7 brings back the b5 color in a smoother, more atmospheric way.

Mood:

  • dark
  • jazzy
  • tense
  • great for fusion or progressive rock

Try playing a clean arpeggiated guitar part over this, or use it as a vamp for legato soloing.

Progression 2: Cinematic Diminished Riff

i° - bII+ - bIII minor - i°

In C:

Cdim - Dbaug - Ebm - Cdim

This one sounds more dramatic and film-score-like.

The Cdim chord gives you the unstable root sound. The Dbaug chord is especially important because it contains:

Db F A

That means it features both the b2 and the natural 6.

The Ebm chord adds a darker minor color before resolving back to the diminished tonic.

Mood:

  • sinister
  • exotic
  • progressive metal-friendly
  • good for riffs in odd meters

This progression works well with palm-muted low C pedal notes.

Progression 3: Progressive Rock Modal Loop

iø7 - bVII m(maj7) - bVmaj7 - IV7

In C:

Cm7b5 - Bbm(maj7) - Gbmaj7 - F7

Loop it back to:

Cm7b5

This progression has a brooding, sophisticated sound.

The Bbm(maj7) chord is unusual and colorful. It contains A natural, which keeps the Locrian 6 identity alive. The Gbmaj7 gives a wide, cinematic sound, and F7 creates movement without fully resolving into a normal major or minor key.

Mood:

  • progressive
  • moody
  • harmonically rich
  • useful for clean sections, bridges, or extended instrumental passages

Famous Songs and Guitarists Using C Locrian 6

C Locrian 6 is an advanced synthetic mode, and there are not many widely agreed famous guitar songs written clearly in this mode.

It is better to be honest here: C Locrian 6 is not a common “song mode” in the way Dorian, Phrygian, Mixolydian, or Aeolian are.

You are more likely to encounter this sound in:

  • fusion improvisation
  • progressive metal riffs
  • modern jazz harmony
  • film and game music
  • experimental songwriting
  • half-diminished chord vamps with a natural 13

Related sounds are more common.

For example, regular Locrian is commonly associated with dark, unstable music. Björk’s “Army of Me” is often discussed in relation to Locrian-like sounds, though it is not a guitar-based C Locrian 6 example.

In guitar music, players such as Allan Holdsworth, Frank Zappa, John McLaughlin, and modern progressive/fusion guitarists often explore similarly tense modal colors. However, it would be misleading to claim a specific famous track is definitively “in C Locrian 6” unless the harmony clearly supports that analysis.

So instead of chasing famous examples, treat C Locrian 6 as a creative tool.

It is a mode you can use to write something that sounds less predictable than standard minor or Phrygian.

Guitar Fretboard Shape

Here is a practical C Locrian 6 shape around the 8th position.

Notes:

C Db Eb F Gb A Bb

Tab shape:

e|-------------------------8-9-11-|
B|------------------10-11-13------|
G|-------------8-10-11------------|
D|-------8-10-11------------------|
A|-8-9-12-------------------------|
E|-8-9-11-------------------------|

Start and end on C to hear the mode clearly.

The root notes are at:

E string, 8th fret
D string, 10th fret
B string, 13th fret
e string, 8th fret

A useful practice idea is to play the shape slowly over a low C drone.

Listen carefully to these notes:

  • Db against C — tense b2
  • Gb against C — unstable b5
  • A against C — strange natural 6
  • Bb against C — dark b7

Those are the notes that make the mode speak.

Why Guitarists Love This Mode

C Locrian 6 is not a “safe” mode.

That is exactly why adventurous guitarists may love it.

Emotional Flavor

The mode sounds dark, tense, and unresolved, but not completely hopeless.

The natural 6 adds a surprising lift. It can make the mode feel:

  • mysterious
  • exotic
  • futuristic
  • progressive
  • cinematic
  • slightly alien

It is darker than Dorian, stranger than natural minor, and less familiar than Phrygian.

Riff Potential

For riffs, the strongest ingredients are:

C Db Eb Gb A Bb

Try building riffs around:

C - Db - C - Gb

Or:

C - Eb - Gb - A - Gb

That movement from Gb to A is especially powerful. It gives the riff a jagged, modern sound.

For metal, use palm-muted C pedal notes and jump to Db, Gb, or A for accents.

Soloing Applications

C Locrian 6 works well over:

Cm7b5(add13)

It can also work over more open vamps that emphasize C and avoid strong major/minor resolution.

Target these tones when soloing:

  • Eb for minor color
  • Gb for tension
  • A for the unique Locrian 6 sound
  • Bb for half-diminished stability
  • Db for sharp dissonance

For a fusion sound, use slides and legato between Gb and A.

For a metal sound, use wide interval jumps and chromatic-style phrasing around C, Db, and Eb.

Genres Where It Works Well

C Locrian 6 can fit naturally into:

  • progressive rock
  • progressive metal
  • jazz fusion
  • modern instrumental guitar
  • cinematic rock
  • dark ambient music
  • experimental songwriting
  • game soundtrack composition

It is especially effective when you want tension without using the usual Phrygian or harmonic minor sound.

Tips for Practicing

Use a C Drone

Drone practice is one of the best ways to learn this mode.

Loop a low C note or use a synth drone in your DAW.

Then play the scale slowly:

C Db Eb F Gb A Bb C

Do not just run the pattern. Hold each note and listen to how it feels against C.

Especially focus on:

  • Db = b2
  • Gb = b5
  • A = natural 6
  • Bb = b7

Try Simple Chord Vamps

Start with a basic vamp:

Cm7b5(add13) - Cm7b5(add13)

Then try:

Cm7b5 - F7

Or:

Cm7b5 - Gbmaj7

Keep returning to C so the mode does not start sounding like another key.

Improvise With Small Phrases

Instead of playing the full scale up and down, create short motifs.

Try:

C - Db - Eb - C

Then:

C - Gb - A - Gb

Then:

Eb - Gb - A - Bb - C

Repeat and vary them rhythmically.

This mode sounds great when you treat it like a riff source, not just a scale pattern.

Target the Important Intervals

When soloing, deliberately land on:

  • b2 for tension
  • b5 for darkness
  • 6 for the defining color
  • b7 for resolution without sounding major or minor

A strong phrase might resolve to A instead of C. That can make the line feel suspended and modern.

Try This Mode in SLModes

Want to explore C Locrian 6 more deeply?

Try it in SLModes.

SLModes helps you work with modes using:

  • interactive chord options
  • guitar fretboard views
  • modal modulation tools
  • negative harmony exploration
  • scale and chord relationships

For a mode like C Locrian 6, this is especially useful because the sound is uncommon and highly color-based.

Use SLModes to hear the chords, map the fretboard, test modal progressions, and discover new ways to turn this dark, unstable mode into real music.