C#aug Piano Chord

The C sharp augmented chord (C♯aug) is made of the notes C♯, E♯ and G𝄪. Its formula is 1 – 3 – ♯5.

Tap the keyboard to hear C♯aug.

Notes in C♯aug

NoteFormulaInterval from root
C♯1root
E♯3major 3rd
G𝄪♯5augmented 5th

How to play C♯aug on piano

  • Right hand: fingers 1-3-5
  • Left hand: fingers 5-3-1

Fingers are numbered from the thumb (1) to the little finger (5).

C♯aug inversions

root position: C#aug

C♯ – E♯ – G𝄪 · RH 1-3-5, LH 5-3-1

1st inversion: C#aug/E#

E♯ – G𝄪 – C♯ · RH 1-2-5, LH 5-3-1

2nd inversion: C#aug/G##

G𝄪 – C♯ – E♯ · RH 1-3-5, LH 5-2-1

Other names for C#aug

C♯aug is also written as C♯aug, C#+, C♯+, C##5, C♯♯5, Dbaug, D♭aug, Db+, D♭+, Db#5, D♭♯5.

Keys that contain C♯aug

C♯aug is not one of the basic chords of any major or minor key. It is usually used as a passing or colour chord.

More C sharp chords

Augmented chords in every key