D Composite Blues Guitar Scale
Guitar scale in 8-string tuning — fretboard diagram
D Composite Blues in 8-string — Notes and Intervals
The D Composite Blues scale is a comprehensive nine-note jazz scale that merges major and minor blues structures. On Guitar, it contains the notes D, E, F, F#, G, Ab, A, B, C. It allows improvisers absolute melodic freedom over dominant chords, blending happiness and grit in every line. Commonly used in Jazz, Blues, Fusion, Funk. Notable players include John Scofield, Robben Ford, Larry Carlton. Use over dominant 7th chords in blues and jazz-blues. Contains both major and minor 3rds, allowing fluid switching between bright and dark.
Notes: D, E, F, F#, G, Ab, A, B, C
Intervals: 1P, 2M, 3m, 3M, 4P, 5d, 5P, 6M, 7m
Degrees: 1 2 b3 4 5 6 7 8 b9
Formula: W-H-H-H-H-H-W-H-W
Number of notes: 9
Tuning: 8-string (F#-B-E-A-D-G-B-E)
About 8-string Tuning
The 8-string guitar adds both a low B and a low F# string (F#-B-E-A-D-G-B-E), pushing the instrument's range almost into bass guitar territory. This massive tonal range has become the weapon of choice for djent, progressive metal, and experimental composers who need bone-crushing low-end and soaring highs in a single instrument.
With artists like Tosin Abasi, Meshuggah, and After the Burial leading the charge, the 8-string guitar has redefined what's possible in modern heavy music. The low F# string delivers subsonic heaviness that you can feel in your chest, while the upper strings maintain standard guitar voicings for leads and clean passages. Extended-range compositions often exploit the full span of the instrument, creating a wall of sound that covers bass, rhythm, and lead guitar roles simultaneously.
Notable artists: Meshuggah, Animals as Leaders, After the Burial, Intervals, Monuments
Best for: Djent polyrhythms, extended-range metal riffs, experimental compositions, and one-instrument arrangements spanning bass to lead
Musical Character
A 9-note 'super blues' scale that merges major and minor blues, giving improvisers absolute freedom to blend happy and gritty textures over dominant chords.