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

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