CH·01 / G♯ IONIAN
I
G♯ Ionian
Happy, bright, resolved — built from G♯ major
PARENT FAMILY · G♯ MAJ
All 7 modes share the same parent scale (G♯ major). G♯ Ionian is the I mode.
| # | Mode | Diatonic chords | Mood |
|---|---|---|---|
| I | G♯ Ionian | G♯maj7 – A♯m7 – Cm7 – C♯maj7 – D♯7 – Fm7 – Gm7♭5 | Happy, bright, resolved |
| II | A♯ Dorian | A♯m7 – Cm7 – C♯maj7 – D♯7 – Fm7 – Gm7♭5 – G♯maj7 | Soulful, minor but with hope |
| III | C Phrygian | Cm7 – C♯maj7 – D♯7 – Fm7 – Gm7♭5 – G♯maj7 – A♯m7 | Dark, tense, Spanish/flamenco |
| IV | C♯ Lydian | C♯maj7 – D♯7 – Fm7 – Gm7♭5 – G♯maj7 – A♯m7 – Cm7 | Dreamy, floating, ethereal |
| V | D♯ Mixolydian | D♯7 – Fm7 – Gm7♭5 – G♯maj7 – A♯m7 – Cm7 – C♯maj7 | Bluesy, dominant, rock |
| VI | F Aeolian | Fm7 – Gm7♭5 – A♭maj7 – B♭m7 – Cm7 – D♭maj7 – E♭7 | Melancholic, natural minor |
| VII | G Locrian | Gm7♭5 – G♯maj7 – A♯m7 – Cm7 – C♯maj7 – D♯7 – Fm7 | Unstable, tense, dissonant |
SCALE · 7 NOTES · 1 2 3 4 5 6 7
G♯
A♯
C
C♯
D♯
F
G
Formula: 1 2 3 4 5 6 7
The Ionian scale on G♯ contains the notes G♯, A♯, C, C♯, D♯, F, G. The pentatonic subset is G♯, A♯, C, D♯, F.
Characteristic note: the major 7th gives it a bright, resolved sound.
DIATONIC 7ths · CHORD PAD
I
G♯maj7
II
A♯m7
III
Cm7
IV
C♯maj7
V
D♯7
VI
Fm7
VII
Gm7♭5
▸ Play G♯ Ionian over G♯maj7 and D♯7 progressions.
FRETBOARD · STANDARD TUNING · 15F● LIVE
CHARACTER · HAPPY, BRIGHT, RESOLVED
HAPPY, BRIGHT, RESOLVED
G♯ Ionian is a major mode with a happy, bright, resolved character. It is the I mode of G♯ major — it uses the same 7 notes as G♯ Ionian but is rooted on G♯, which shifts the harmonic focus and creates a completely different sound. The tonic chord is G♯maj7.
Where to use G♯ Ionian
Major key melodies, pop, folk, classical.
Famous examples
- Happy Birthday
- Let It Be
- most pop songs
What makes it distinctive: the major 7th gives it a bright, resolved sound.
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