C♯aug
C♯aug is the c# augmented chord, spelled C♯ – E♯ – A. a raised fifth pushes this triad upward — a classic passing colour between stable chords.
The keys
C♯ – E♯ – A
Practise this chord
Plug in your MIDI keyboard and let Coach Tshepho drill you on C♯aug — it plays the chord, names any wrong notes as you play, and moves you on when you nail it.
Create your free account →What's inside C♯aug
| Note | Interval from root | Degree |
|---|---|---|
| C♯ | Root | 1 |
| E♯ | Major 3rd | 3 |
| A (spelled G♯♯) | Augmented 5th | #5 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | D♭4 – F4 – A4 |
| 1st inversion | F4 – A4 – D♭5 |
| 2nd inversion | A4 – D♭5 – F5 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | D♭2 – D♭3 |
| Right (colour) | F4 – A4 |
Where C♯aug lives
As the I chord
C♯aug → G♭ → A♭ → C♯aug
The classic I–IV–V–I motion with this chord as home.
In a ii–V–I
E♭m7 → A♭7 → C♯aug
The strongest cadence in harmony, resolving onto this chord.
Put C♯aug under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →More C# chords
C♯
C♯m
C♯dim
C♯sus2
C♯sus4
C♯6
C♯m6
C♯7
C♯maj7
C♯m7
C♯m7♭5
C♯dim7
C♯m(maj7)
C♯9
C♯maj9
C♯m9
C♯add9
C♯6/9
C♯m11
C♯13
C♯7♭9
C♯7♯9
C♯7♯5Play it over a groove
Free worship grooves & loops →