About the D flat 7b5 Diminished scale
D flat 7b5 Diminished is used for jazz solos over dominant chords with a flat fifth. Think of it as a dominant scale with a flat fifth and a chromatic seventh.
Its notes are D♭, E♭, F, G♭, G, A, C♭, and C. The formula is W W H H W W H H.
Also called Messiaen Mode 6.
The black keys D♭, E♭, and G♭ belong to D♭ 7b5 Diminished. The key lines up four white keys back to back.
Notes and intervals
| 1 | DbD♭ | Root |
|---|---|---|
| 2 | EbE♭ | Major 2nd |
| 3 | FF | Major 3rd |
| 4 | GbG♭ | Perfect 4th |
| 5 | GG | Diminished 5th |
| 6 | AA | Minor 6th |
| 7 | CbC♭ | Minor 7th |
| 8 | CC | Major 7th |
| Steps | W W H H W W H H |
|---|---|
| Semitones | 2-2-1-1-2-2-1-1 |
| Degrees | 1 2 3 4 ♭5 ♭6 ♭7 7 |
Shapes
Chromatic
Circle of Fifths
Related scales
7b5 Diminished in other keys
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