G# Diminished (half–whole)
An eight-note symmetric half–whole scale; its altered degrees create a tense dominant sound.
Octaves
Musical context
How the scale relates to the chord, mode, key and progression.
Theory
General info
- Name
- G# Diminished (half–whole)
- Family
- Symmetric scales
- Note count
- 8
- Step formula
- H – W – H – W – H – W – H – W
- Numeric formula
- 0-1-2-1-2-1-2-1-2
Notes & degrees
1G#root
b2Aminor 2nd
#2Baug 2nd
3B#major 3rd
#4Daug 4th
5D#perfect 5th
6E#major 6th
b7F#minor 7th
Construction
- Overview
- An eight-note symmetric half–whole scale; its altered degrees create a tense dominant sound.
- Application in music
- Symmetric: the half–whole pattern repeats every minor third. Sits over dominant sevenths with b9 and #9 (V7b9).
- Interval formula
- G#HAWBHB#WDHD#WE#HF#
Tensions & resolutions
Stable degrees
IG#point of resttonic
IIIB#defines modal qualitythird
VD#supports the tonic sonorityfifth
Typical resolutions & tensions
IG#G#
IIAA
Scale degree 2 may descend to tonic; the motion is especially close when degree 2 is lowered.
This scale on guitar 🎸
See how G# Diminished (half–whole) looks on guitar.
Circle of fifths
The major key on the same tonic and its neighbouring keys on the circle of fifths.
Connections
Practice
Keyboard Trainer
Reinforce it in practice — play and name notes on the interactive keyboard.