B Iwato Guitar Scale — Drop B
Guitar scale in Drop B tuning — fretboard diagram
B Iwato in Drop B — Notes and Intervals
The B Iwato scale is a dark and brooding Japanese pentatonic scale. On Guitar, its notes are B, C, E, F, A. It is essentially a pentatonic Locrian mode, known for its unstable and mysterious character, often used to depict shadows or deep contemplation. Commonly used in Japanese, Metal, Dark Ambient, Experimental. Notable players include Marty Friedman, Meshuggah. Use over diminished or m7b5 chords. Excellent for dark ambient textures and metal riffs with an Eastern edge.
Notes: B, C, E, F, A
Intervals: 1P, 2m, 4P, 5d, 7m
Degrees: 1 b2 3 4 b5
Formula: H-4-H-4-W
Number of notes: 5
Tuning: Drop B (B-F#-B-E-G#-C#)
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