Scale guide
C Locrian - The Locrian Scale
In one sentence: Minor with minor 2nd (Db) and diminished 5th (Gb). The darkest scale of modal jazz with 3 flats. Evokes sophisticated jazz tension and half-diminished mystery. Miles Davis, Wayne Shorter master it. Advanced Intermediate.
📊 TECHNICAL SHEET
Level: Advanced Intermediate
Alterations: 3 flats (Bb, Eb, Ab)
Key: C_locrian
Formula
- Intervals: S-T-T-T-S-T-T (Major Mode VII)
- Type: Locrian Modal (half-diminished jazz)
- Tonic: C
- Mother scale: Bb Major (from C)
- Characteristics: Minor 2nd (Db) + diminished 5th (Gb) = "the two dark claws"
Notes
| US Notation | Latin Notation | Order | Interval |
|---|---|---|---|
| C Db Eb F Gb Ab Bb | Do Re♭ Mi♭ Fa Sol♭ La♭ Si♭ | 1-b2-b3-4-b5-b6-b7 | S-T-T-T-S-T-T |
The minor 2nd + diminished 5th DEFINE Locrian. Without them, it's common C minor. They are "the two claws" that create half-diminished tension.
Fingering - RH (right hand)
| Direction | 1 octave | 2 octaves |
|---|---|---|
| Asc | 1-2-1-2-3-1-2-3 | 1-2-1-2-3-1-2-1-2-1-2-3-1-2-3 |
| Desc | 3-2-1-3-2-1-2-1 | 3-2-1-3-2-1-2-1-3-2-1-3-2-1-2 |
Fingering - LH (left hand)
| Direction | 1 octave | 2 octaves |
|---|---|---|
| Asc | 3-2-1-3-2-1-2-1 | 3-2-1-3-2-1-2-1-3-2-1-3-2-1-2 |
| Desc | 1-2-3-1-2-3-2-3 | 1-2-3-1-2-3-2-3-1-2-3-1-2-3-2 |
🎼 CHORDS AND PROGRESSIONS
Diatonic Chords in C Locrian
| Degree | Chord | Tension | Example Use |
|---|---|---|---|
| I | Cm7b5 (half-dim) | Maximum tension | Preparation, mystery |
| II | Dbmaj7 | Bright, contrast | Harmonic movement |
| III | Ebmaj7 | Warm, escape | Intermezzo |
| IV | Fm7 | Dark, deep | Transition |
| V | Gbmaj7b5 | Rare, tensioned | Special effect |
| VI | Abmaj7 | Warm, contemplative | Texture backgrounds |
| vii | Bbdom7 | Dark dominant | Return to C |
Songs & Paradigm Progressions
1. C Locrian Half-Diminished (Classic Modal Jazz)
Cm7b5 | Dbmaj7 | Cm7b5 | Dbmaj7 |
Cm7b5 | Gbmaj7b5 | Cm7b5 | Cm7b5 |
Sound: Dark modal jazz, half-diminished sophistication. Similar to Wayne Shorter "Footprints".
2. Half-Dim Oscillation
Cm7b5 | Dbmaj7 | Cm7b5 | Dbmaj7 |
Sound: The two claws (Db + Gb) create tension that resolves in Dbmaj7.
3. Complete Movement
Cm7b5 | Gbmaj7b5 | Cm7b5 | Cm7b5 |
Sound: Contemplative jazz. Gb is "the diminished claw".
🎵 HOW TO PLAY
Essence: The Half-Diminished Tension
C Locrian is the scale of "sophisticated dark modal jazz". With minor 2nd (Db) and diminished 5th (Gb), it creates a sound that is "extremely tense + sophisticated". It's perfect for modal jazz, harmonic tension, moments of contemplative mystery.
Pedagogical technique: Play Cm7b5 as the "tensioned chord". Then explore: Db and Gb are "the two claws" that create all the tension.
Exercise 1: Awareness of the Two Claws
- Play C minor: C-D-Eb-F-G-Ab-Bb-C (natural 2nd, natural 5th).
- Now play C Locrian: C-Db-Eb-F-Gb-Ab-Bb-C (Db + Gb).
- Pause on Db. It's the "minor claw".
- Then pause on Gb. It's the "diminished claw".
- Sing "Do-Re flat-Mi flat-Fa-Sol flat-La flat-Si flat-Do" with tension.
- Repeat 8 times.
Goal: Feel how Db + Gb together create unique half-diminished tension.
Exercise 2: Half-Diminished Rhythmic Pattern
Cm7b5 | Dbmaj7 | Cm7b5 | Dbmaj7 | (tension oscillation)
C | Db Eb F | Gb Ab Bb C | (tense ascension)
C | Bb Ab Gb | F Eb Db C | (resolute descent)
Play this 8 times, alternating. Start at ♩=100, with cool jazz swing. Seek "tense sophistication, not speed".
Exercise 3: Dark Modal Jazz Improvisation
- Base chords: Cm7b5 | Dbmaj7 | Cm7b5 | Dbmaj7
- Right hand: Improvise with C Locrian notes
- Left hand: Maintain base chords
Duration: 3 minutes at ♩=110. Seek "sophisticated modal jazz, contemplative mystery".
🏛️ HISTORICAL CONTEXT
Composers & Works
Wayne Shorter — "Footprints" (1967)
- Concert modal jazz. C Locrian as modal base.
- Cm7b5 is the "tensioned chord" that defines the legendary sound.
Miles Davis — "So What" Modern (1960s explorations)
- Cool-modal jazz. C Locrian in improvisations.
- Use of half-diminished to create "dark sophistication".
Herbie Hancock — "Maiden Voyage" (1973)
- Contemplative jazz-funk. C Locrian in transition moments.
- Voicings that emphasize Cm7b5 as "preparatory tension".
John Coltrane — "Naima" (1959, modal influences)
- Contemplative jazz ballad. C Locrian in depth passages.
- Use of Gb as "the diminished tension claw".
Modal Root
C Locrian = Mode VII of Bb Major.
Bb Major: Bb-C-D-Eb-F-G-A.
From C: C-Db-Eb-F-Gb-Ab-Bb (Locrian).
⚠️ COMMON MISTAKES
| ❌ Mistake | ✅ Correction |
|---|---|
| Playing D natural instead of Db | It's Db (Re♭), not D natural. The 2nd is minor |
| Playing G natural instead of Gb | It's Gb (Sol♭), not G natural. The 5th is diminished |
| Confusing C Locrian with C minor | C minor: D and G natural. C Locrian: Db + Gb |
| Ignoring the tension of the two claws | Db + Gb are "the two claws". Emphasize their tension |
| Inconsistent fingering | Practice slowly: 1-2-1 on Db and Gb |
| Playing fast without sophistication | C Locrian is modal jazz. ♩=100-110 with swing, not speed |
| Thinking it's "just dark C minor" | No: C Locrian is sophisticated half-diminished, not Minor |
🔄 SCALE COMPARISON
C Locrian vs C minor vs C Major vs C Phrygian
| Scale | 2nd | 5th | Character | Use |
|---|---|---|---|---|
| C Major | Natural | Natural | Bright, classic | Pop, concert |
| C minor | Natural | Natural | Dark, melancholic | Blues, drama |
| C Phrygian | Minor | Natural | Dark + exotic | Flamenco, Spanish |
| C Locrian | Minor | Minor | Dark + sophisticated tense | Modal jazz, half-dim |
The key: Db + Gb together create unique half-diminished tension.
📈 LEARNING PROGRESSION
Week 1: Construction & Half-Diminished Tension
| Day | Task | Duration |
|---|---|---|
| Mon | Learn the 7 notes: C-Db-Eb-F-Gb-Ab-Bb | 15 min |
| Tue | RH fingering. Db and Gb are critical | 15 min |
| Wed | LH fingering. Scale slow (♩=80) | 15 min |
| Thu | Comparison C minor ↔ C Locrian (8 times) | 10 min |
| Fri | Listening to Cm7b5 as "tension" | 10 min |
| Sat-Sun | Review + listen to Wayne Shorter "Footprints" | 20 min |
Week 2: Application & Modal Jazz
| Day | Task | Duration |
|---|---|---|
| Mon | Diatonic chords I-ii-III-vi | 15 min |
| Tue | Progression Cm7b5 | Dbmaj7 | Cm7b5 | Dbmaj7 | 15 min |
| Wed | Modal improvisation (♩=110, swing) | 20 min |
| Thu | Comparison C Locrian ↔ C minor | 10 min |
| Fri | Comparison C Locrian ↔ C Phrygian | 10 min |
| Sat-Sun | Recording: scale + progression + improvisation | 30 min |
✅ MASTERY CHECKLIST
- I know the 7 notes in order: C-Db-Eb-F-Gb-Ab-Bb
- I can play the scale ascending at ♩=120 with RH
- I can play the scale descending at ♩=120 with LH
- I recognize Cm7b5 as "tension" half-diminished
- I can play the progression Cm7b5 | Dbmaj7 with jazz swing
- I identify the auditory difference: C Locrian vs C minor
- I identify the auditory difference: C Locrian vs C Phrygian
- I can improvise dark modal jazz over Cm7b5
- I know 2+ composers (Wayne Shorter, Miles Davis, etc.)
- I can explain why Db + Gb are "the two claws"
- I have practiced the scale for at least 10 days
- I feel the character "sophisticated dark tensioned"
- I can finger the scale in 2 octaves without errors
🌟 FINAL PERSPECTIVE
C Locrian is the scale of "sophisticated dark modal jazz". With minor 2nd (Db) and diminished 5th (Gb), it's as if the scale says: "I am intelligent tension", "I am the half-diminished mystery".
This scale appears in classic modal jazz, in moments of sophisticated tension, in modern composition. Composers discovered that C Locrian is perfect for creating "contemplative mystery without frivolity", "refined harmonic tension".
The key is in the two claws: Db + Gb. Together they create unique tension that doesn't exist in any other scale. It's as if it says: "Here is mystery and sophistication." And when you play it with jazz swing, the answer resonates: "Yes. That's pure modal jazz."
Your goal: Master C Locrian and you'll understand how modal jazz creates dark sophistication. On piano, that's harmonic intelligence.