C♯ Ionian — 7th chords

Four-note stacks of thirds on each degree — root, 3rd, 5th, 7th. The added 7th gives jazz, gospel, and modern classical voicings their distinctive colour.

All 7 seventh chords in sequence

Degree 1 · Imaj7C#maj7

Degree 2 · ii7D#m7

Degree 3 · iii7E#m7

Degree 4 · IVmaj7F#maj7

Degree 5 · V7G#7

Degree 6 · vi7A#m7

Degree 7 · vii°7B#m7b5

Open in inversion explorer

Imaj7 · C#maj7 ii7 · D#m7 iii7 · E#m7 IVmaj7 · F#maj7 V7 · G#7 vi7 · A#m7 vii°7 · B#m7b5