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A/C# Piano Chord

The fundamental chord with a bright, happy and stable sound. Forms the basis of most popular, rock, folk and classical music. Consists of three notes: the root, major third and perfect fifth.

Piano

Recommended voicing
A3 · C#4 · E4

How to play the A/C# chord on piano

Play the recommended root-position voicing with the right hand: A3, C#4 and E4. Suggested fingering is 1–3–5 (1 is the thumb).

Notation for A/C# chord

Other names: A major, A maj, A M

Music theory name: major triad

Common name: A major chord

Intervals and tones in A/C# chord

Note Interval
A Root
C# Major 3rd
E Perfect 5th

Inversions

1st inversion
C#4 · E4 · A4
2nd inversion
E4 · A4 · C#5

More chords with A as the root

The same chord type in other keys