D# dorian b9 scale
The D# dorian b9 scale consists of the D# (Perfect unison), E (Minor second), F# (Minor third), G# (Perfect fourth), A (Diminished fifth), C (Major sixth) and C# (Minor seventh) notes.

Notes in order
- D# — Perfect unison
- E — Minor second
- F# — Minor third
- G# — Perfect fourth
- A — Diminished fifth
- C — Major sixth
- C# — Minor seventh