G Ultralocrian Guitar Scale
Guitar scale in Drop D tuning — fretboard diagram
G Ultralocrian in Drop D — Notes and Intervals
The G Ultralocrian scale is an extremely dark and condensed scale used to create intense chromatic tension. On Guitar, its notes are G, Ab, Bb, B, Db, Eb, E. 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: G, Ab, Bb, B, Db, Eb, E
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: Drop D (D-A-D-G-B-E)
Also known as: superlocrian bb7, superlocrian diminished
About Drop D Tuning
Drop D tuning lowers the 6th string from E to D, giving you instant access to heavy power chords with a single finger. This deceptively simple change opens up a world of heavier riffs, deeper bass notes, and new chord voicings that are impossible in standard tuning. The low D string creates a powerful foundation for rhythm playing while keeping the rest of the fretboard familiar.
Drop D is one of the most versatile alternate tunings in modern music. From the crunchy riffs of grunge and alternative rock to the thunderous breakdowns of metal, this tuning has shaped the sound of countless iconic songs. It's also surprisingly useful for fingerpicking and acoustic arrangements where you need a deep bass drone.
Notable artists: Foo Fighters, Soundgarden, Rage Against the Machine, Tool, Killswitch Engage
Best for: Power chords, heavy riffs, drop-tuned metal rhythm, and acoustic arrangements with a deep bass drone
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.