A Major
Notes:A – C# – E
Fingerings1 – 3 – 5
Formula:R-M3-P5
Intervals:P1-M3-P5
Scale Degrees:1-3-5
Introduction
The A major piano chord is a major triad built on A and consists of three notes: A, C#, and E. It comes from the A Major scale (A, B, C#, D, E, F#, and G#) and is formed using the 1st, 3rd, and 5th scale degrees. The A Major chord contains three sharps. Like all major chords, it has a bright, stable sound created by the interval structure of a major third (4 semitones) and a perfect fifth (7 semitones) above the root.
Notes
How to Play the A Major
Right Hand (RH)
Place your right hand over the keys and use the fingering: 1 – 3 – 5
Left Hand (LH)
For the left hand, use the fingering: 5 – 3 – 1
A Major Inversions
| Position | Notes |
|---|---|
| Root Position | A4 – C#5 – E5 |
| 1st Inversion | C#4 – E4 – A4 |
| 2nd Inversion | E4 – A4 – C#5 |
Key Signature
The key of A Major has 3 sharps: F♯, C♯, G♯.
F♯C♯G♯
Theory: Intervals
Formula: R-M3-P5
Intervals: P1-M3-P5
The A Major is built by stacking intervals from the root note. The formula R-M3-P5 describes the scale degrees used. The intervals P1-M3-P5 show the distance between each note in the chord.
A Major — Frequently Asked Questions
What notes make up the A Major chord?
A Major contains three notes: A (root), C# (major third), and E (perfect fifth). C# is a black key, giving A Major a single black-key reach between two white notes.
What fingering do I use for A Major?
Right hand: finger 1 on A, finger 3 on C#, finger 5 on E. Left hand: finger 5 on A, finger 3 on C#, finger 1 on E. The middle finger arches up to C# while the thumb and pinky rest on white keys A and E.
What are the inversions of A Major?
First inversion (A/C#): C#–E–A. Second inversion (A/E): E–A–C#. A/C# in the bass allows for a smooth descending bass line movement from A through G# (if using G#/Ab) down to F#m, a very common jazz and pop device.
What songs use the A Major chord?
A Major appears in hundreds of classic songs. It is the tonic in Don't Stop Me Now (Queen), the I chord in countless country tracks, and the V chord in D major songs. Wonderwall (Oasis) uses A as part of its signature four-chord sequence.
What chords pair well with A Major?
In the key of A: D Major (IV), E Major (V), and F# minor (vi). A–D–E is the classic three-chord rock sequence. A–E–F#m–D is one of the most common pop progressions of the 21st century.
How does C# affect the sound and feel of A Major?
C# is only four semitones above A (a major third), which is what gives A Major its bright, resolved quality. Without C# — using C natural instead — you would have A minor, which sounds darker and more melancholic. The single black-key difference has an enormous effect on mood.
Practice Tips
- Find C# before placing your other fingers — it is the black key immediately to the right of C, the first black key after C in the C–D group.
- Arch your middle finger clearly: if it flattens, it may accidentally mute E or A beside it.
- Practice A → D → E → A as the foundational three-chord loop in the key of A.
- Work on A → E → F#m → D (I–V–vi–IV in A) — this is one of the most commercially successful chord progressions ever.
- Add vibrato feel: try playing A Major as broken chord — A then C# then E — arpeggiated upward and back down.