C♯ Lydian Scale: Notes, Formula & Chords

C♯ Lydian scale on the piano

C♯ – D♯ – E♯ – F♯♯ – G♯ – A♯ – B♯

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Scale type: Lydian
Number of notes: 7
Formel: W–W–W–H–W–W–H
Parent scale: A♭ Dur (degree 4)

What is the Lydian scale?

Lydian is the fourth mode of the major scale — a major scale with a raised fourth. The raised fourth removes the pull of the perfect fourth and leaves a floating, open sound used constantly in film scoring.

C♯ Lydian uses the same notes as A♭ Dur, started from degree 4 instead of the first. The notes are shared; the tonic, and therefore the sound, is not.

C♯ Lydian is a scale, not a key. It has no key signature of its own — music that uses it is normally written in the key signature of its parent scale, with any extra accidentals added as they occur.

Scale degrees of C♯ Lydian

Trinn	Note	Intervall	Semitones
1	C♯	P1	0
2	D♯	M2	2
3	E♯	M3	4
4	F♯♯	TT	6
5	G♯	P5	7
6	A♯	M6	9
7	B♯	M7	11

Chords in C♯ Lydian

These are the triads built on each degree of C♯ Lydian using only notes from the scale.

Other scales on C♯

Every scale type that starts on C♯, for comparison.

Lydian in every key

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What notes are in the C♯ Lydian scale?

The C♯ Lydian scale has 7 notes: C♯, D♯, E♯, F♯♯, G♯, A♯, B♯.

What is the formula for the C♯ Lydian scale?

The C♯ Lydian scale follows the step pattern W–W–W–H–W–W–H, where H is a half step and W is a whole step.

What scale is C♯ Lydian derived from?

C♯ Lydian is the mode of A♭ Dur that starts on its 4 degree. Both scales use the same notes but resolve to a different tonic.

What chords are in the C♯ Lydian scale?

The triads built from the C♯ Lydian scale are C♯, D♯, E♯m, F♯♯dim, G♯, A♯m, B♯m.