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C#alt Piano Chord

A dominant chord with maximum tension — the specific tones (b5, #5, b9, #9) are chosen by the player based on context. An advanced jazz chord where the listed intervals represent one common voicing.

Piano

Recommended voicing
Left hand C#3 · B3 fingers 5–1
Right hand G4 · E5 · F5 fingers 1–4–5

How to play the C#alt chord on piano

Split the recommended voicing between the hands: play C#3 and B3 with the left hand and G4, E5 and F5 with the right. Suggested fingering is 5–1 on the left and 1–4–5 on the right (1 is the thumb).

Notation for C#alt chord

Other names: C# altered, C# alt

Music theory name: altered dominant chord

Common name: C# altered chord

Intervals and tones in C#alt chord

Note Interval
C# Root
F Major 3rd
G Diminished 5th
H Minor 7th
E Augmented 9th

More chords with C# as the root

The same chord type in other keys