D Locrian Cavaquinho Scale
Cavaquinho scale — fretboard diagramAdvanced
D Locrian Scale — Notes and Intervals
The D Locrian scale is the seventh and most unstable mode of the major scale. On Cavaquinho, the notes are D, Eb, F, G, Ab, Bb, C. It sounds highly dissonant and unresolved, as its home chord is a diminished triad. While rare as a primary key, it is a crucial technical tool for jazz musicians improvising over half-diminished chords in tension-heavy passages. The diatonic chords of D Locrian are Dm7b5, EbMaj7, Fm7, Gm7, AbMaj7, Bb7, Cm7. Commonly used in Jazz, Metal, Experimental, Avant-Garde. Notable players include John Coltrane, Meshuggah, Dream Theater. Use over m7b5 (half-diminished) chords. Essential for jazz ii-V-i in minor keys where the ii chord is half-diminished.
Notes: D, Eb, F, G, Ab, Bb, C
Intervals: 1P, 2m, 3m, 4P, 5d, 6m, 7m
Degrees: 1 b2 b3 4 5 b6 b7
Formula: H-W-W-H-W-W-W
Number of notes: 7
Diatonic Chords
Dm7♭5 — E♭Maj7 — Fm7 — Gm7 — A♭Maj7 — B♭7 — Cm7
Musical Character
The only mode with a diminished 5th (b5) from the root, making its home chord a diminished triad. This instability means Locrian is almost never used as a key center — it is a tool for tension.
Genres & Notable Artists
Genres: Jazz, Metal, Experimental, Avant-Garde
Notable players: John Coltrane, Meshuggah, Dream Theater
How to Use the D Locrian Scale
Use over m7b5 (half-diminished) chords. Essential for jazz ii-V-i in minor keys where the ii chord is half-diminished.
Origin & Background
Named after the Locrians of ancient Greece. Considered 'unusable' for centuries until jazz musicians found its purpose over half-diminished chords.
How to Play D Locrian on Cavaquinho
Begin by locating D on your instrument and play through the 7 notes of the Locrian scale slowly, ensuring each note rings clearly before increasing speed.
The D Locrian scale contains 3 flats (Eb, Ab, Bb). Its relative major is F major, which shares the same key signature.
Practice Routine
Set a metronome to 100 BPM and play the D Locrian scale in groups of four notes, shifting the starting note each repetition. This builds muscle memory across the entire scale range. After a week, try improvising short 4-bar phrases using only these notes.
Try these progressions with the D Locrian scale: Dm7b5 - Gm7 - AbMaj7 - Dm7b5 (I-IV-V-I) or Dm7b5 - EbMaj7 - Gm7 - AbMaj7 for a more stepwise movement. This scale is especially effective in metal contexts.
Cavaquinho Tips
Practice the D Locrian scale slowly and evenly on your instrument, focusing on tone quality for each of the 7 notes before building speed. Aim for a unstable quality in your phrasing to match the natural character of this scale.
Related Scales
Locrian is the 7th mode of the Major scale. View D Major scale
The D Locrian scale contains 7 notes (D, Eb, F, G, Ab, Bb, C). Use the interactive fretboard above to explore this scale on Cavaquinho with different tunings and fret ranges.
CAGED Positions & Patterns for D Locrian
The D Locrian scale can be played in 5 CAGED positions across the fretboard, each based on an open chord shape (C, A, G, E, D). As a 7-note scale, it also lends itself to 3-notes-per-string (3NPS) patterns that facilitate legato playing and diagonal shifting. Use the pattern selector above to isolate each position.