C ionian mode
The C ionian mode consists of the C (Perfect unison), D (Major second), E (Major third), F (Perfect fourth), G (Perfect fifth), A (Major sixth) and B (Major seventh) notes.

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