Learn › A Major 7th Chord on Piano (Amaj7)

New Released in April 2026

A Major 7th Chord on Piano (Amaj7)

To play Amaj7 on the piano, press A, C#, E, G# together: root, major third, fifth and major seventh. Take A and add G#. Here you will find its inversions, both hands and the chords it belongs with.

Play the demo

No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.

MIDI keyboard
Digital or acoustic piano
Guitar
Computer, phone or tablet

Amaj7 A C# E G#

What Amaj7 does in music

Amaj7 is the Imaj7 of A major and the IVmaj7 of E major.
It is where a ii-V-I in A major lands: Bm7 → E7 → Amaj7.
Inside Amaj7 sits C#m (C# E G#): play C#m over A in the bass and you get Amaj7.

ii-V-I: Bm7 → E7 → Amaj7 · A

Amaj7 inversions on the keyboard

Move A up an octave for the 1st inversion, then C# for the 2nd, then E for the 3rd.

Amaj7 A C# E G#

Root position: A C# E G#

Amaj7 C# E G# A

1st inversion: C# E G# A

Amaj7 E G# A C#

2nd inversion: E G# A C#

Amaj7 G# A C# E

3rd inversion: G# A C# E

A 5-minute Amaj7 routine

Start in root position: A, C#, E, G#, four times, eyes on the symbol.
Climb the four positions: A C# E G#, then C# E G# A, E G# A C# and G# A C# E, and back down.
Play it in its ii-V-I, Bm7 → E7 → Amaj7, four beats per chord.
Then mix it with chords you already know, in an order you do not choose: that is where it sticks.

A few minutes every day on Amaj7 beat one long session a week.

Four 7th chords on A

Play the four in a row and listen to each colour.

Chord	Notes	What changes
A7	A C# E G	major 3rd, minor 7th
Amaj7	A C# E G#	major 3rd, major 7th
Am7	A C E G	minor 3rd, minor 7th
Am7b5	A C Eb G	minor 3rd, flat 5th, minor 7th
Adim7	A C Eb Gb	minor 3rd, flat 5th, 7th one key lower again

How to play Amaj7 on the piano

Hand	A	C#	E	G#
Right hand	1 (thumb)	2	3	5 (little)
Left hand	5 (little)	3	2	1 (thumb)

Land all four fingers at once. If G# is quieter, the little finger is too flat.

Amaj7 without the fifth

Amaj7 A C# G#

The fifth (E) adds little colour. A C# G# is enough to sound like Amaj7 and is far easier to reach.

ChordRunner showing a chord block while hands play the piano

Train Amaj7 in a game

In ChordRunner Amaj7 and every other chord ride towards your runner: play them in time. MIDI keyboard or microphone, both work.

Play the demo

All piano chords · Piano chord chart

Common questions

What is the difference between Amaj7 and A?

Amaj7 adds one note to the A triad: G#, the major seventh. That fourth note is what makes it a seventh chord.

Can I play Amaj7 with three notes?

Yes. Leave out the fifth and play A C# G#: root, third and seventh. It still sounds like Amaj7 and is easier for the left hand.

Where does Amaj7 go?

Amaj7 is the Imaj7 of A major and the IVmaj7 of E major. It is where a ii-V-I in A major lands: Bm7 → E7 → Amaj7.

Can I practise Amaj7 with a MIDI keyboard?

Yes. In ChordRunner a USB MIDI keyboard is detected automatically, and an acoustic piano works through the microphone. Amaj7 counts in any inversion, as long as A, C#, E, G# sound together.

Your instrument is the controller.

ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.

Try the demo

A Major 7th Chord on Piano (Amaj7)

What Amaj7 does in music

Amaj7 inversions on the keyboard

A 5-minute Amaj7 routine

Four 7th chords on A

How to play Amaj7 on the piano

Amaj7 without the fifth

Train Amaj7 in a game

Common questions

What is the difference between Amaj7 and A?

Can I play Amaj7 with three notes?

Where does Amaj7 go?

Can I practise Amaj7 with a MIDI keyboard?

Your instrument is the controller.

Keep learning

Piano Chord Chart: Every Chord in All 12 Keys

A7 Chord on Piano (A Dominant 7th)

A Minor 7th Chord on Piano (Am7)

A Half-Diminished Chord on Piano (Am7b5)

A Diminished 7th Chord on Piano (Adim7)

A Major Chord on Piano (A)