C Ultralocrian Guitar Scale
Guitar scale in Baritone (B Standard) tuning — fretboard diagram
C Ultralocrian in Baritone (B Standard) — Notes and Intervals
The C Ultralocrian scale is an extremely dark and condensed scale used to create intense chromatic tension. On Guitar, its notes are C, Db, Eb, E, Gb, Ab, A. It is used in avant-garde jazz and dark ambient music to explore the most dissonant boundaries of minor-key tonality. Commonly used in Avant-Garde, Dark Ambient, Experimental Jazz. Notable players include John Zorn, Derek Bailey. Use over dim7 chords in avant-garde contexts. More of a compositional tool than an improvisational one.
Notes: C, Db, Eb, E, Gb, Ab, A
Intervals: 1P, 2m, 3m, 4d, 5d, 6m, 7d
Degrees: 1 b2 b3 4 5 b6 7
Formula: H-W-H-W-W-H-WH
Number of notes: 7
Tuning: Baritone (B Standard) (B-E-A-D-F#-B)
Also known as: superlocrian bb7, superlocrian diminished
About Baritone (B Standard) Tuning
The baritone guitar is tuned a perfect fourth lower than standard guitar (B-E-A-D-F#-B), producing a distinctly beefy tone with serious low-end depth that sits perfectly between guitar and bass. Its rich, dark voice has made it a secret weapon in film scoring, ambient music, and moody songwriting where you need that unmistakable low-end warmth without losing clarity.
Unlike simply tuning a standard guitar down (which causes floppy strings and muddy tone), the baritone guitar uses a longer scale length (typically 27"-30") designed specifically for lower tunings. This gives each note clarity and definition even in the lowest register. Session musicians, film composers, and bedroom producers alike reach for the baritone when they need dark, atmospheric textures, doom-laden riffs, or simply a different sonic palette that standard guitar can't deliver.
Notable artists: Pat Metheny, Nels Cline, Brian Setzer, Baritone session players in Nashville
Best for: Moody songwriting, film scoring, ambient textures, doom metal, and any production that needs low-end depth with clarity
Musical Character
The darkest mode of the harmonic minor — so dark it has a diminished 4th (bb7), making it almost chromatic. Used to push dissonance to its absolute limit.