A altered scale

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

Piano keyboard showing the notes for the A altered scale

Notes in order

  1. A — Perfect unison
  2. A# — Minor second
  3. C — Minor third
  4. C# — Major third
  5. D# — Diminished fifth
  6. F — Minor sixth
  7. G# — Major seventh