F phrygian b4 scale
The F phrygian b4 scale consists of the F (Perfect unison), F# (Minor second), G# (Minor third), A (Major third), C (Perfect fifth), C# (Minor sixth) and D# (Minor seventh) notes.

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