C# Lydian — diatonic chords

Major mode with a #4. Bright, dreamy, otherworldly.

7 chords · one per scale degree

Diatonic triads

Chord details

Degree	Numeral	Chord	Quality
1	I	C#	Major
2	II	D#	Major
3	iii	Fm	Minor
4	iv°	G°	Diminished
5	V	G#	Major
6	vi	A#m	Minor
7	vii	Cm	Minor

Lydian in other keys

C C#D D#E F F#G G#A A#B

Scale diagram

View C# Lydian fretboard diagram →

Other scales in C#

C# Major C# Natural Minor C# Harmonic Minor C# Melodic Minor C# Dorian C# Phrygian

About the C# Lydian scale's harmony

The C# Lydian scale produces the following diatonic triads: C#, D#, Fm, G°, G#, A#m, Cm. These chords all use only the notes of the C# Lydian scale. The Roman numerals (I–II–iii–iv°–V–vi–vii) show the function of each chord within the key.