C Ionian, the first mode of the major scale in the key of C, can be sung three different ways:

---

As a Key? in Jump Space,

“perfect perfect perfect perfect perfect tritone perfect “

PPPPPtP

CGDAEBF

---

As a Chord in Skip Space,

“major minor major minor minor major minor”

MmMmmMm

CEGBDFA

---

As a Mode in Step Space.

“whole whole half whole whole whole half”

WWhWWWh

CDEFGAB

---