The Lydian Mode
Lydian is major with a raised 4th — formula 1, 2, 3, #4, 5, 6, 7 — and its character is major, but floating. In F, the notes are F, G, A, B, C, D, E.
The sound
The dreamiest mode. Raising the major scale's 4th removes its one unstable note and leaves something that floats — "The Simpsons" theme, Joe Satriani's "Flying in a Blue Dream", half of John Williams' wonder cues. It sounds like major that never needs to come home.
F Lydian on the fretboard
F Lydian uses only natural notes — the classic way to first find it — and the shape moves to any key like every guitar scale:
Practice F Lydian on the interactive fretboard →
When to use it
Over a major chord you want to shimmer rather than resolve — especially the IV chord of a key, where Lydian is what the key already gives you. Modern film and game scores use it as the default "wonder" colour.
Hear it in one minute: loop a static Fmaj7 chord — play the B natural (the #4) deliberately and let it hang.
Lydian in every key
| Key | 1 | 2 | 3 | #4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| A | A | B | C# | D# | E | F# | G# |
| Bb | Bb | C | D | E | F | G | A |
| B | B | C# | D# | E# | F# | G# | A# |
| C | C | D | E | F# | G | A | B |
| C# | C# | D# | E# | F𝄪 | G# | A# | B# |
| D | D | E | F# | G# | A | B | C# |
| Eb | Eb | F | G | A | Bb | C | D |
| E | E | F# | G# | A# | B | C# | D# |
| F | F | G | A | B | C | D | E |
| F# | F# | G# | A# | B# | C# | D# | E# |
| G | G | A | B | C# | D | E | F# |
| Ab | Ab | Bb | C | D | Eb | F | G |
Put it to work over a backing track — a static minor or dominant vamp is the ideal practice bed for modes.