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

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