About the C sharp Diminished Half-Whole scale
C sharp Diminished Half-Whole is used for jazz improvisation over dominant seventh chords. Think of it as the diminished scale starting with a half step, tailor made for dominant chords.
Its notes are C♯, D, E, E♯, G, G♯, A♯, and B. The formula is H W H W H W H W. It is the second mode of B Diminished.
Also called Symmetric Diminished and Dominant Diminished.
On the piano, this scale touches the black keys C♯, G♯, and A♯. That raised fourth spells out to the white key G. C♯ Diminished Half-Whole runs four white keys in a row on the piano.
Notes and intervals
| 1 | C#C♯ | Root |
|---|---|---|
| 2 | DD | Minor 2nd |
| 3 | EE | Minor 3rd |
| 4 | E#E♯ | Major 3rd |
| 5 | GG | Augmented 4th |
| 6 | G#G♯ | Perfect 5th |
| 7 | A#A♯ | Major 6th |
| 8 | BB | Minor 7th |
| Steps | H W H W H W H W |
|---|---|
| Semitones | 1-2-1-2-1-2-1-2 |
| Degrees | 1 ♭2 ♭3 3 ♯4 5 6 ♭7 |
Shapes
Chromatic
Circle of Fifths
Related scales
Diminished Half-Whole in other keys
C Diminished Half-Whole scaleD Diminished Half-Whole scaleD sharp Diminished Half-Whole scaleE Diminished Half-Whole scaleF Diminished Half-Whole scaleF sharp Diminished Half-Whole scaleG Diminished Half-Whole scaleG sharp Diminished Half-Whole scaleA Diminished Half-Whole scaleA sharp Diminished Half-Whole scaleB Diminished Half-Whole scale
Modes
The same notes, starting on a different note.
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