Locrian 6 Mode on Guitar: Notes, Chords & Examples

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.

How does it sound?

Before anything else, let’s hear how it sounds. This can best be done by playing a chord from the mode, and playing the notes of the mode arpeggiated on top of it. This is the best and quickest way to determine the feel of a mode.

This can be quickly done using SLModes, a software dedicated to the music modes, and the following sound was generated by it:

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 Progression (Example)

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.

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.

Guitar Fretboard Shape

Here’s the mode mapped across the full fretboard, generated with my software SLModes.

The diagram shows every occurrence of the mode across the neck:

🟢 Green dots = the root note, your anchor points
🟠 Orange dots = the rest of the scale tones

Why Guitarists Love This Mode

C Locrian 6 is not a “safe” mode.

That is exactly why adventurous guitarists may love it.

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.

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

To practice a mode effectively, you only need two things:

An instrument to play the mode (your guitar is ready to go!)
A backing track that provides a harmonic context

The fretboard diagram above already show you where the notes are. The remaining piece is choosing an appropriate backing track to improvise over.

Practice with a drone

The simplest option is a single C drone.

You can create one using:

A looper pedal
A synth drone
A sustained bass note in your DAW
An open C tuning
Or any other source of a continuous C note

Because the accompaniment consists of only a single note, you are responsible for highlighting the intervals that define the mode. The more intentionally you emphasize its characteristic tones, the more clearly the modal sound will emerge.

Create modal vamps with SLModes

While a drone is an excellent way to hear a mode in isolation, a modal vamp often provides a more musical and rewarding practice experience.

A well-designed backing track naturally emphasizes the mode’s characteristic intervals, allowing you to focus on phrasing, melody, and expression instead of constantly trying to establish the modal sound yourself. As a result, improvising in the character of the mode often feels more intuitive.

There are many ways to build modal backing tracks, but SLModes can generate them for you in just a few clicks. For example:

Arpeggiated backing tracks — a repeating pattern that outlines every note of the mode.
Chord vamps — progressions built from chords that best reinforce the mode’s unique character.

This video shows you an example: