Amaj7 on the piano is a major 7th chord made from A, C#, E, G#. On piano it is played from the keys A, C#, E, G#, root position first, then in inversions. Below you will find its notes and intervals, every usable voicing on the piano, the common mistakes players make with it and the keys and progressions where it belongs.
What notes are in the Amaj7 chord?
The Amaj7 chord is a major 7th chord, and its notes are fixed: A, C#, E, G#. Every voicing on every instrument uses these same notes, in some order and in some octave — change one of them and you are playing a different chord. The table below lists each note with its interval from the root A, so you can see the structure of Amaj7 at a glance. On the piano, the root-position keys A, C#, E, G# show Amaj7 most clearly.
| Note | Interval |
|---|---|
| A | Root |
| C# | 3 |
| E | 5 |
| G# | 7 |
The root is A, the note the chord is named after and the note your ear hears as home. Above it, the intervals in Amaj7 are 3, 5, 7. That combination is what makes Amaj7 sound the way it does: the intervals decide the colour, and the root decides the pitch. On the piano, the notes appear in the order the fingering dictates, but the set of notes never changes.
Amaj7 sounds mellow and spacious, a tonic colour that feels settled yet richer than a plain major triad. Listen for that character when you play it — if Amaj7 does not sound that way, one of the notes is probably wrong, and the table above is the place to check. On the piano, Amaj7 is the keys A, C#, E, G#, and the inversions above move the same notes around.
Comparing Amaj7 with its closest relatives helps to fix it in your ear. In short, major 7th against dominant 7th: Amaj7 keeps the major 7th G#, while the dominant version flattens it to G. The major 7th sounds dreamy; the dominant 7th sounds restless. Practise the two chords back to back and listen to the one note that changes — that single note is the difference between the two chords. On the piano, Amaj7 is the keys A, C#, E, G#, and the inversions above move the same notes around.
How to play Amaj7 on piano
On the piano, Amaj7 is played from the keys A, C#, E, G#. In root position the lowest note is A, the root, with the other notes stacked above it in the order A, C#, E, G#. Play it with the right hand first, then with the left hand an octave lower, so both hands know the shape of Amaj7 before you try it in a progression.
First inversion of Amaj7 puts C# in the bass, with the notes in the order C#, E, G#, A. The chord is still Amaj7 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to C# rather than jump to A, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
Second inversion of Amaj7 puts E in the bass, with the notes in the order E, G#, A, C#. The chord is still Amaj7 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to E rather than jump to A, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
Third inversion of Amaj7 puts G# in the bass, with the notes in the order G#, A, C#, E. The chord is still Amaj7 — the notes have not changed, only their order — but the bass note changes how it connects to the chord before and after it. Use this inversion when the bass line wants to step to G# rather than jump to A, and practise moving from root position to this inversion without lifting your hand off the keys more than you must.
For fingering, a good starting point for Amaj7 in root position in the right hand is thumb on A, then one finger per note in order, with the little finger on the top note G#. For the left hand, mirror it: little finger on the low A and thumb on the top note. When a note is a black key — C#, G# — let your longer fingers take it, since they reach the black keys more easily. Practise Amaj7 in root position and first inversion, hands separately, then together, at a slow tempo, and use the Piano Chord Finder to check the voicing on the keyboard.
Common mistakes
These are the mistakes that most often make Amaj7 sound wrong on the piano, and each one has a concrete fix. Work through them one at a time rather than trying to fix everything at once.
Flattening the 7th. If G# slips down to G you have the dominant 7th, a different chord with a different job. Check the 7th note carefully — it sits a semitone below the root. On the piano, play the keys A, C#, E, G# slowly and listen for each note of Amaj7 in turn.
Clashing the 7th against the root. The major 7th is a semitone below the root, so voicings that put them next to each other in the same octave can sound harsh. Spread the notes out across octaves. On the piano, play the keys A, C#, E, G# slowly and listen for each note of Amaj7 in turn.
Playing it like a plain triad. Leaving G# out turns this into an ordinary major chord and loses the whole point of the maj7 colour. Make the 7th audible. On the piano, the root-position keys A, C#, E, G# show Amaj7 most clearly.
Using it as a dominant. Amaj7 does not pull to a tonic the way a dominant 7th does. If you need a V chord, use the dominant 7th instead. On the piano, Amaj7 is the keys A, C#, E, G#, and the inversions above move the same notes around.
Where Amaj7 is used
Amaj7 is not a diatonic triad in any major or minor key, because it is an extended or altered chord, but its base triad belongs to the key of D major, the key of E major, the key of A major. a chord for slow, open voicings — it rewards space and light touch. As a dominant-type chord it also points toward D major, the key a perfect fourth above A, which is the tonic it most often resolves to. That is where Amaj7 does its work: not as a home chord, but as a chord that creates movement and then resolves. On the piano, Amaj7 is the keys A, C#, E, G#, and the inversions above move the same notes around.
Because Amaj7 is an extended or altered chord, it appears in progressions as a colour or a dominant rather than as a diatonic staple. Try it in place of the plain A triad in a progression you already know, and listen to how the extra notes change the feel — that substitution is the usual way extended chords enter real music. The Chord Progression Builder lets you try Amaj7 in a progression in any key and hear how it connects to the chords around it. On the piano, Amaj7 is the keys A, C#, E, G#, and the inversions above move the same notes around.
The same chord on other instruments is covered in Amaj7 on guitar, Amaj7 on ukulele, Amaj7 on bass, and the scales that fit over it are the A major scale and the A minor pentatonic scale. Learning Amaj7 on the piano and then checking it on another instrument is one of the best ways to fix the notes — A, C#, E, G# — in your memory, because the notes stay the same while everything else changes.
Practising Amaj7
A short worked example makes Amaj7 concrete. Play the four-chord progression D – A – Bm – G in D major, the key Amaj7 most often resolves toward: D – A – Bm – G. Play each chord for one bar at a slow tempo, and listen to how Amaj7 sounds in that sequence — whether it feels like home, like a lift, or like a chord on its way somewhere else. Then play the same four chords in a different order, starting on Amaj7 itself, and notice how its character changes when it opens the progression instead of sitting inside it. On the piano, play the keys A, C#, E, G# slowly and listen for each note of Amaj7 in turn.
For a second exercise, play Amaj7 and then the chord a fourth above A, back and forth, four times each. That move — a chord and the chord a fourth above it — is the most common resolution in Western music, and it is the move Amaj7 is built for when it acts as a dominant. Finish by playing Amaj7 on its own, slowly, and naming each note out loud as you play it: A, C#, E, G#. Naming the notes while you play them is what turns a shape into knowledge you can use in any key. Test yourself with the Practice Chord Quiz and keep time with the Metronome as the tempo rises. On the piano, the root-position keys A, C#, E, G# show Amaj7 most clearly.
Frequently asked questions
Which fingers do you use for Amaj7 on piano?
In the right hand, start with the thumb on A and one finger per note in order, ending with the little finger on G#. In the left hand, mirror it with the little finger on the low A. Longer fingers take the black keys, so check which notes of Amaj7 are black keys before you settle on a fingering.
Is Amaj7 a major chord?
Yes — Amaj7 is a major 7th chord, built on a major triad (A, C#, E) with the major 7th G# added. It sounds major, but with a dreamy, jazzy colour the plain triad does not have. On the piano, check the root-position keys above for that note.
What is the difference between Amaj7 and A7?
Amaj7 uses the major 7th G#; A7 uses the flattened 7th G. Amaj7 sounds settled and shimmering, A7 sounds bluesy and wants to resolve. On the piano, check the root-position keys above for that note.
Where is Amaj7 used?
Amaj7 is most at home as a tonic chord in jazz, bossa nova and soft pop, and as the IV chord in major keys. It suits slow tempos and open voicings where its shimmer has room to breathe. On the piano, check the root-position keys above for that note.
How do you play Amaj7 on the piano?
In root position, play the keys A, C#, E, G#, with A as the lowest note. That is the basic shape of Amaj7 on the piano. The inversions above put a different note in the bass, and the Chord Inverter shows every inversion of Amaj7 on the keyboard.