Ab Diminished scale
An eight-note symmetric whole–half scale; it repeats at the minor 3rd and outlines the diminished 7th chord.
Octaves
Musical context
How the scale relates to the chord, mode, key and progression.
Theory
General info
- Name
- Ab Diminished scale
- Family
- Symmetric scales
- Note count
- 8
- Step formula
- W – H – W – H – W – H – W – H
- Numeric formula
- 0-2-1-2-1-2-1-2-1
Notes & degrees
1Abroot
2Bbmajor 2nd
b3Cbminor 3rd
4Dbperfect 4th
b5Ddim 5th
b6Fbminor 6th
6Fmajor 6th
7Gmajor 7th
Construction
- Overview
- An eight-note symmetric whole–half scale; it repeats at the minor 3rd and outlines the diminished 7th chord.
- Application in music
- Symmetric: the whole–half pattern repeats every minor third. Sits over diminished seventh chords (dim7).
- Interval formula
- AbWBbHCbWDbHDWFbHFWG
Tensions & resolutions
Stable degrees
IAbnominal centretonic
IIICbdefines modal qualitythird
Typical resolutions & tensions
VIIGG
IAbAb
In typical voice leading, the leading tone rises by semitone to tonic.
IIICbCb
IVDbDb
In a dominant context, scale degree 4 normally descends by step to 3.
IAbAb
IIBbBb
Scale degree 2 may descend to tonic; the motion is especially close when degree 2 is lowered.
This scale on guitar 🎸
See how Ab Diminished scale 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.