The Ionian mode belongs to the I chord!
Ionian is the modal name for the major scale (Do Re Mi Fa So La Ti Do).
The majority of hit songs composed in the popular music tradition take place in the Ionian mode, using the other modes to support it.
Practice extensively, do not underestimate the importance of being able to solo in major.
By starting with the major pentatonic, adding notes you will discover the true sound of the scale since the important intervals that make up the mode. See below.
| Major Pentatonic: |
1 |
2 |
3 |
5 |
6 |
||
| Ionian: | 4 |
7 |
Character: Ionian is often referred to as having a happy sound
Soloing: Use Ionian when you want a happy and settled sound, and whenever you play over the I chord
Practice Ionian like this:
- Chord shape
- Major pentatonic
- add 4
- Major pentatonic
- add 7
- Major pentatonic
- Ionian
- Chord shape
To see the Ionian mode move around the guitar neck in different keys and shapes, use Chordacus.
Ionian Mode History
The Ionian mode is what we today see as chord I. Often referred to as the major scale it has all other chords in a key organized around it.
Musical theory tools like the cycle of 4ths, the cycle of 5ths all have Ionian as their anchor point. Aeolian is seen as parallel minor of Ionian and is because of this the only other mode which sits with the use of key signatures. One sharp, for example means G Ionian or E Aeolian.
Learn more about the history of the Ionian mode from Wikipedia.
To understand how the Ionian mode work on the guitar in popular music, refer to your copy of the Guitar Conspiracy and practice the exercises according to the S-E P R.









