C♯ Lydian Augmented scale

The C♯ Lydian Augmented scale is a 7-note lydian augmented scale built on the root C♯. Its notes are C♯, D♯, E♯, F𝄪, G𝄪, A♯ and B♯. Third mode of melodic minor — Lydian with a raised fifth, dreamy and otherworldly. This page covers the formula, fingerings, diatonic chords and common progressions that make C♯ Lydian Augmented a great tool for improvising and composing.

Short answer

Lydian Augmented is a jazz favourite over augmented major-7 chords. The raised fifth gives an unsettled, dreamy quality — film composers use it for magical or surreal moments. Built on the root C♯, the scale takes on the specific colour and pitch range of that key - making it especially useful in genres and registers where C♯ is a comfortable tonal centre.

Notes
C♯ · D♯ · E♯ · F𝄪 · G𝄪 · A♯ · B♯
Formula
1P · 2M · 3M · 4A · 5A · 6M · 7M
Step pattern
W W W W H W H
Tonic
C♯

C♯ Lydian Augmented on the piano

Show:
Piano keyboard highlighting the C♯ Lydian Augmented scale notesB♯E♯F𝄪G𝄪B♯E♯F𝄪G𝄪C♯D♯A♯C♯D♯A♯C♯ Lydian Augmented - C♯ · D♯ · E♯ · F𝄪 · G𝄪 · A♯ · B♯

C♯ Lydian Augmented on the guitar

Show:
Position:
Guitar fretboard highlighting the C♯ Lydian Augmented scale noteseBGDAEE♯F𝄪G𝄪A♯B♯C♯D♯B♯C♯D♯E♯F𝄪G𝄪A♯F𝄪G𝄪A♯B♯C♯D♯E♯F𝄪D♯E♯F𝄪G𝄪A♯B♯C♯G𝄪A♯B♯C♯D♯E♯F𝄪G𝄪E♯F𝄪G𝄪A♯B♯C♯D♯C♯ Lydian Augmented - fr 012

C♯ Lydian Augmented on the staff

Hear the C♯ Lydian Augmented scale

C♯ Lydian Augmented
C♯ · D♯ · E♯ · F𝄪 · G𝄪 · A♯ · B♯
C♯D♯E♯F𝄪G𝄪A♯B♯

Improvisation drone

Loop the root note as a pad to practice improvising over this scale.

C♯ Lydian Augmented
C♯

Notes of the C♯ Lydian Augmented scale

DegreeIntervalSemitonesNoteHear
11P0C♯(C#)
22M2D♯(D#)
33M4E♯(E#)
44A6F𝄪(F##)
55A8G𝄪(G##)
66M9A♯(A#)
77M11B♯(B#)

Diatonic chords of C♯ Lydian Augmented

These are the chords that naturally form on each degree of the scale. Click a chord to open its dedicated page.

How to use the C♯ Lydian Augmented scale

The diatonic chords of C♯ Lydian Augmented are: I+ = C♯+, II = D♯, III = E♯, iv° = F𝄪°, v° = G𝄪°, vi = A♯m, vii = B♯m. These seven chords belong naturally to the key and are the safest harmonic vocabulary when writing songs in C♯ Lydian Augmented. Click any chord below to open its full diagram and progressions.

Lydian Augmented is a jazz favourite over augmented major-7 chords. The raised fifth gives an unsettled, dreamy quality — film composers use it for magical or surreal moments.

Practice tips

Target the raised fifth (♯5) over a major-7♯5 chord to lock in the lydian augmented sound. Try arpeggiating the I and III chords — both are augmented triads — to hear how unstable the scale is.

Where you will hear C♯ Lydian Augmented

C♯ Lydian Augmented appears throughout lydian augmented is a jazz favourite over augmented major-7 chords. the raised fifth gives an unsettled, dreamy quality — film composers use it for magical or surreal moments. Listening to music in this scale and transcribing short phrases is the fastest way to absorb its sound.

Formula & step pattern

Formula
1P · 2M · 3M · 4A · 5A · 6M · 7M
Step pattern
W - W - W - W - H - W - H

The C♯ Lydian Augmented scale follows the third mode of melodic minor — major with a raised fourth and fifth (1, 2, 3, ♯4, ♯5, 6, 7). Step pattern: W - W - W - W - H - W - H. Intervals from the root: 1P · 2M · 3M · 4A · 5A · 6M · 7M. Memorising the formula lets you transpose the scale to any other root note quickly.

Questions people ask

What notes are in the C♯ Lydian Augmented scale?
The C♯ Lydian Augmented scale contains C♯, D♯, E♯, F𝄪, G𝄪, A♯ and B♯.
What is the formula for the C♯ Lydian Augmented scale?
C♯ Lydian Augmented follows the third mode of melodic minor — major with a raised fourth and fifth (1, 2, 3, ♯4, ♯5, 6, 7).
Is C♯ Lydian Augmented a major or minor scale?
C♯ Lydian Augmented is a lydian augmented scale. Third mode of melodic minor — Lydian with a raised fifth, dreamy and otherworldly.
What chords belong to the C♯ Lydian Augmented scale?
The diatonic chords of C♯ Lydian Augmented are C♯+, D♯, E♯, F𝄪°, G𝄪°, A♯m, B♯m.
Which genres use C♯ Lydian Augmented?
Lydian Augmented is a jazz favourite over augmented major-7 chords. The raised fifth gives an unsettled, dreamy quality — film composers use it for magical or surreal moments.
How do I practise the C♯ Lydian Augmented scale?
Target the raised fifth (♯5) over a major-7♯5 chord to lock in the lydian augmented sound. Try arpeggiating the I and III chords — both are augmented triads — to hear how unstable the scale is.