Scales and modes
Lydian mode
The Lydian mode is the fourth mode of the major scale: a major scale with a raised fourth (#4), which gives it a bright, floating, unresolved sound.
What is the Lydian mode?
Lydian is the fourth of the seven modes of the major scale. Play the C major scale starting from F (F G A B C D E) and you have F Lydian: the same notes as C major, but F is now home.
Its interval formula is 1 2 3 #4 5 6 7. Compared with the Ionian mode, the ordinary major scale, only one note changes: the fourth is raised a half step. That #4 sits a tritone above the root and removes the pull of the natural fourth down to the third. The result is a major sound that never quite lands, which is why film composers and instrumental rock players love it.
How do you play Lydian on the guitar neck?
Take A Lydian: A B C# D# E F# G#. Those are the notes of E major, centred on A. Put the root on the 6th string at the 5th fret and find the characteristic note, D#:
- 5th string, 6th fret
- 3rd (G) string, 8th fret
- 2nd (B) string, 4th fret
The fastest route: play the A major scale shape you already know, then raise every D by one fret. You are not learning a new shape, you are changing one scale degree. That habit scales to every mode and every key.
Which chords sound Lydian?
The signature chord is maj7#11. Amaj7#11 is A C# E G# with D# on top, so a major seventh chord is the foundation and the #11 is the colour.
The quickest way to hear Lydian is a I-II vamp: two major chords a whole step apart over the same bass note.
| Chord | Shape | Notes |
|---|---|---|
| A | x02220 | A E A C# E |
| B/A | x04442 | A F# B D# F# |
The open A string holds while the B major triad sounds the D#. You have heard this move in TV themes and in a lot of dreamy instrumental guitar.
Exercise: improvise in A Lydian
Loop A to B/A, two bars each, at 80 BPM.
- For two rounds, play only A, C# and E (the A arpeggio).
- Add D# and let it ring over the B/A bar.
- End every phrase on C# or E, never on D#.
To check your fingerings, show A Lydian on the interactive guitar scales tool in interval view: the #4 stands out in every octave. Once it feels natural, look at melodic minor: its fourth mode, Lydian dominant, is Lydian with a flat seventh, the go-to sound over a non-resolving dominant chord.
Common Lydian mistakes
- Running the E major scale over an A chord without aiming at the #4: it just sounds like E major that never resolves.
- Ending phrases on the #4: it colours, it does not conclude.
- Playing Lydian over A7: the major seventh G# clashes with the G in the chord. Use Lydian dominant or Mixolydian there instead.
Key takeaways
- Lydian = major scale with a raised fourth (1 2 3 #4 5 6 7).
- It is mode 4: F Lydian uses the notes of C major, A Lydian those of E major.
- Signature chord: maj7#11. Signature progression: I-II over one bass note (A, B/A).
- Aim at the #4 for colour, land on 1, 3 or 5.
Frequently asked questions
What is the difference between Lydian and the major scale?
Just the fourth note. The major scale has a perfect fourth (F in C major), Lydian has an augmented fourth (F# in C Lydian). That single note removes the urge to resolve and makes the sound lighter.
What chord do you play Lydian over?
A sustained major or maj7 chord, especially one followed by a major chord a whole step higher. In a major key, the IV chord is naturally Lydian: in C major, Fmaj7 takes F Lydian because it shares C major's notes.
Is the Lydian mode hard to learn on guitar?
Not if you already know the major scale. Keep your usual fingering and raise the fourth by one fret. Learn one position at a time, then connect positions along the neck.
Related terms
Practise in the workshop
Take it from theory to the fretboard
Open the workshop tools and see this idea across the whole neck. Free account, no card needed.