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CH·01 / F IONIAN
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F Ionian

Happy, bright, resolved — built from F major
in
PARENT FAMILY · F MAJ

All 7 modes share the same parent scale (F major). F Ionian is the I mode.

#ModeDiatonic chordsMood
I F Ionian Fmaj7 – Gm7 – Am7 – B♭maj7 – C7 – Dm7 – Em7♭5 Happy, bright, resolved
II G Dorian Gm7 – Am7 – A♯maj7 – C7 – Dm7 – Em7♭5 – Fmaj7 Soulful, minor but with hope
III A Phrygian Am7 – A♯maj7 – C7 – Dm7 – Em7♭5 – Fmaj7 – Gm7 Dark, tense, Spanish/flamenco
IV B♭ Lydian B♭maj7 – C7 – Dm7 – Em7♭5 – Fmaj7 – Gm7 – Am7 Dreamy, floating, ethereal
V C Mixolydian C7 – Dm7 – Em7♭5 – Fmaj7 – Gm7 – Am7 – A♯maj7 Bluesy, dominant, rock
VI D Aeolian Dm7 – Em7♭5 – Fmaj7 – Gm7 – Am7 – A♯maj7 – C7 Melancholic, natural minor
VII E Locrian Em7♭5 – Fmaj7 – Gm7 – Am7 – A♯maj7 – C7 – Dm7 Unstable, tense, dissonant
SCALE · 7 NOTES · 1 2 3 4 5 6 7
F G A B♭ C D E
Formula: 1 2 3 4 5 6 7

The Ionian scale on F contains the notes F, G, A, B♭, C, D, E. The pentatonic subset is F, G, A, C, D.

Characteristic note: the major 7th gives it a bright, resolved sound.
DIATONIC 7ths · CHORD PAD
I
Fmaj7
II
Gm7
III
Am7
IV
B♭maj7
V
C7
VI
Dm7
VII
Em7♭5
▸ Play F Ionian over Fmaj7 and C7 progressions.
FRETBOARD · STANDARD TUNING · 15F● LIVE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 E B G D A E F C Bb F A E G D Bb F C G A E C G D A Bb F Bb D A E C G Bb F C E D A F C G D Bb E G D A E F C Bb F A E
CHARACTER · HAPPY, BRIGHT, RESOLVED
HAPPY, BRIGHT, RESOLVED

F Ionian is a major mode with a happy, bright, resolved character. It is the I mode of F major — it uses the same 7 notes as F Ionian but is rooted on F, which shifts the harmonic focus and creates a completely different sound. The tonic chord is Fmaj7.

Where to use F 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.