Locrian #2 Mode on Guitar: Notes, Chords & Examples

The Locrian ♯2 mode is a dark, tense, and sophisticated guitar mode. It has the unstable bite of Locrian because of the b5, but it sounds smoother and less claustrophobic than regular Locrian because it uses a natural 2 instead of a b2.

You can think of it as a half-diminished sound with a more open, melodic color.

For guitarists, Locrian ♯2 is especially useful over m7b5, ø7, and minor ii-V-i progressions. It works beautifully in jazz fusion, progressive rock, progressive metal, film-score-style writing, and darker modal songwriting.

It is known as:

Locrian natural 2
Locrian ♯2
The half-diminished scale
The 6th mode of Eb melodic minor

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 ♯2 is:

1 2 b3 4 b5 b6 b7

Compared to the natural minor scale:

C natural minor: 1 2 b3 4 5 b6 b7

C Locrian ♯2: 1 2 b3 4 b5 b6 b7

The big difference is the b5.

Compared to regular Locrian:

C Locrian: 1 b2 b3 4 b5 b6 b7

C Locrian ♯2: 1 2 b3 4 b5 b6 b7

The natural 2 gives the mode a more spacious, less “crushed” sound than regular Locrian.

Notes in C

The notes of C Locrian ♯2 are:

C D Eb F Gb Ab Bb

Scale degrees:

C = 1
D = 2
Eb = b3
F = 4
Gb = b5
Ab = b6
Bb = b7

The two notes that really define the sound are:

D, the natural 2
Gb, the b5

That combination gives the mode its strange mix of openness and instability.

A Chord That Defines the Mode

A defining chord of C Locrian ♯2 is:

Cm7b5

Notes: C Eb Gb Bb

Chord formula: 1 ♭3 ♭5 ♭7

This chord establishes the half-diminished foundation of the mode.

The complete mode is C D Eb F Gb Ab Bb. Cm7b5 does not contain D, the natural second that distinguishes Locrian ♯2 from ordinary Locrian.

Feature D in the melody over Cm7b5. That natural second gives the mode a more open and melodic color than the lowered second of regular Locrian.

Chord Progression (Example)

Cm7b5 – Fm7 – Bb7 – Cm7b5

Chord	Notes
Cm7b5	C Eb Gb Bb
Fm7	F Ab C Eb
Bb7	Bb D F Ab
Cm7b5	C Eb Gb Bb

Fm7 supplies F and Ab, while Bb7 introduces D, the mode’s natural second. The recurring Cm7b5 preserves the unstable C tonic sound.

Mood: Dark, smooth, suspended, and fusion-friendly.

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 ♯2 gives guitarists a dark sound without becoming completely unusable or overly dissonant.

Regular Locrian can be hard to write with because the b2 and b5 make the tonic feel extremely unstable. Locrian ♯2 keeps the b5 tension but replaces the b2 with a natural 2, which makes the mode more melodic.

C Locrian ♯2 sounds:

Dark
Suspended
Mysterious
Sophisticated
Tense but smooth

It is not as aggressive as Phrygian dominant and not as familiar as natural minor. That makes it great when you want something darker and more unusual.

Genres Where It Works Well

C Locrian ♯2 fits naturally in:

Jazz fusion
Progressive rock
Progressive metal
Modern jazz
Film scoring
Dark ambient guitar music
Experimental songwriting
Technical metal and fusion solos

It can also work in home production if you want a darker harmonic color for synth pads, guitar layers, or cinematic chord loops.

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: