Gb Iwato (Japanese)

A Japanese pentatonic scale, 1–b2–4–b5–b7; the minor 2nds 1–b2 and 4–b5 intensify tension.

Octaves

Musical context

How the scale relates to the chord, mode, key and progression.

Theory

General info

Name
Gb Iwato (Japanese)
Family
Pentatonic scales
Note count
5
Step formula
H – 4 – H – 4 – W
Numeric formula
0-1-4-1-4-2

Notes & degrees

1Gbroot
b2Gminor 2nd
4Cbperfect 4th
b5Cdim 5th
b7Fbminor 7th

Construction

Overview
A Japanese pentatonic scale, 1–b2–4–b5–b7; the minor 2nds 1–b2 and 4–b5 intensify tension.
Application in music
The lowered 2nd tends toward the tonic and the diminished 5th toward the perfect 5th; both emphasise instability.
Interval formula
Gb
H
G
2W
Cb
H
C
2W
Fb

Tensions & resolutions

Stable degrees

IGbnominal centretonic

Typical resolutions & tensions

IGbGb
IIGG
Scale degree 2 may descend to tonic; the motion is especially close when degree 2 is lowered.

This scale on guitar 🎸

See how Gb Iwato (Japanese) looks on guitar.

Explore

Circle of fifths

The major key on the same tonic and its neighbouring keys on the circle of fifths.

CAmGEmDBmAF#mEC#mBG#mF#D#mDbBbmAbFmEbCmBbGmFDmF#major
Relative key
Dominant
Subdominant
Key signature
6 sharps (F#, C#, G#, D#, A#, E#)

Connections

Practice

Keyboard Trainer

Reinforce it in practice — play and name notes on the interactive keyboard.

Open Trainer

Frequently Asked Questions