C# Ultralocrian Guitar Scale — Drop B

Guitar scale in Drop B tuning — fretboard diagram

C# Ultralocrian in Drop B — 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#, D, E, F, G, A, Bb. 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#, D, E, F, G, A, Bb

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 B (B-F#-B-E-G#-C#)

Also known as: superlocrian bb7, superlocrian diminished

About Drop B Tuning

Drop B tuning (B-F#-B-E-G#-C#) takes the guitar into territory traditionally reserved for 7-string instruments, delivering a subsonic heaviness that you can feel in your chest. This tuning has become essential in modern extreme metal, deathcore, and djent, where low-end clarity and rhythmic precision are paramount.

Drop B represents the practical limit of what a standard 6-string guitar can handle before tone quality degrades. With the right string gauge (12-60 or heavier) and proper setup, it delivers the crushing lows of a 7-string while keeping the familiar 6-string layout. Bands like Architects, Periphery (on some tracks), and Parkway Drive have used Drop B to create some of the heaviest riffs in modern metal.

DeathcoreDjentProgressive MetalExtreme MetalMetalcore

Notable artists: Architects, Parkway Drive, Whitechapel, Born of Osiris, Emmure

Best for: Extreme metal riffs, deathcore breakdowns, djent chugs, and any style demanding the lowest possible 6-string tuning

Explore This Scale in Other Tunings

← All Guitar scales in Drop B tuning