All Modes
Degree I

Ionian Mode

The Major Scale, Bright & Happy

Interval Formula
W W H W W W H
C 1
D 2
E 3
F 4
G 5
A 6
B 7
C

Overview

Ionian is the first and most familiar of the seven modes - it is simply the major scale. Starting on the 1st degree of any major scale, Ionian carries a bright, resolved, and happy quality that has made it the foundation of Western music for centuries.

The Ionian mode features a major 3rd (giving it its bright quality), a perfect 5th, and a major 7th (a leading tone that strongly resolves back to the root). These characteristics create a strong sense of tonal gravity and resolution. The I–IV–V–I progression built from Ionian is arguably the most common chord progression in all of Western music.

Pro Tip: Think of Ionian as "home base." Every other mode can be understood as Ionian with one or more notes altered.

Famous Examples

  • Happy Birthday To You by Traditional
  • Let It Be by The Beatles
  • Don't Stop Believin' by Journey
  • Twinkle Twinkle Little Star by Traditional

Characteristic Chord Progression

I – IV – V – I
In C: C major – F major – G major – C major

Common Genres

PopClassicalFolkCountry

Visualize Ionian Mode

See Ionian highlighted on a piano keyboard. Change the root note to explore all 12 keys.

Mode Ionian
Root C
Character Bright & Major
Scale Notes
Interval Pattern