A Diminished Guitar Scale — Drop B
Guitar scale in Drop B tuning — fretboard diagram
A Diminished in Drop B — Notes and Intervals
The A Diminished scale, also known as the Octatonic scale and Messiaen's Mode of Limited Transposition #2, alternates whole and half steps to create an 8-note symmetrical structure. On Guitar, its notes are A, B, C, D, Eb, F, F#, G#. Only three unique diminished scales exist — after three transpositions, the notes repeat. It is the definitive sound of film noir, thrillers, and psychological horror, used by composers from Stravinsky to Hans Zimmer to evoke dread, ambiguity, and mounting tension. Use it over dim7 chords and as a sophisticated tension device over dominant 7ths. Commonly used in Jazz, Film Scores, Classical, Metal. Notable players include Django Reinhardt, Joe Pass, Bela Bartok, Dream Theater. Use over dim7 chords and as a tension device over dominant 7ths. Each diminished scale works over 4 different root notes (every minor 3rd).
Notes: A, B, C, D, Eb, F, F#, G#
Intervals: 1P, 2M, 3m, 4P, 5d, 6m, 6M, 7M
Degrees: 1 2 b3 4 5 b6 7 8
Formula: W-H-W-H-W-H-W-H
Number of notes: 8
Tuning: Drop B (B-F#-B-E-G#-C#)
Also known as: whole-half 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.
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
- A Diminished in Standard Tuning
- A Diminished in Drop D
- A Diminished in DADGAD
- A Diminished in Open G
- A Diminished in Baritone (B Standard)
- A Diminished in 7-string
- A Diminished in 8-string
- A Diminished in Drop C
- A Diminished in Open D
- A Diminished in Half Step Down
- A Diminished in Open E
- A Diminished in Open A
- A Diminished in Double Drop D
- A Diminished in Open C