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C#aug7 Piano Chord

Combines the tension of an augmented fifth with a dominant seventh. Typical of jazz and blues turnarounds — a chord with a strong pull toward resolution.

Piano

Recommended voicing
C#4 · E#4 · A4 · B4

How to play the C#aug7 chord on piano

Play the recommended root-position voicing with the right hand: C#4, E#4, A4 and B4. Suggested fingering is 1–2–3–5 (1 is the thumb).

Other names for the C#aug7 chord

Other names: C# augmented 7th, C#+7

Music theory name: augmented seventh chord

Common name: C# augmented seven chord

Notes and intervals in the C#aug7 chord

Note Interval
C# Root
E# Major 3rd
A Augmented 5th
B Minor 7th

Inversions

1st inversion
E#4 · A4 · B4 · C#5
2nd inversion
A4 · B4 · C#5 · E#5

More chords with C# as the root

The same chord type in other keys