A Piano Chords (Triads & Seventh Chords)

Piano Chords

Chord Root Note: A


triad is a chord having three notes: a root, third, and fifth notes. Learn how to build triad chords.

A major chord: A – C♯ – E
a major triad


A minor chord: A – C – E
a minor triad

A augmented chord: A – C♯ – E♯
a augmented triad


A diminished chord: A – C – E♭
a diminished triad chord

Piano Chords Reference Chart

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Seventh Chords

seventh chord is a chord having four notes: a root, third, fifth, and seventh notes. Learn how to build seventh chords.

A major seventh chord: A – C♯ – E – G♯
a major 7th chord


A minor seventh chord: A – C – E – G
a minor 7th chord

A dominant seventh chord: A – C♯ – E – G
a dominant 7th chord


A half-diminished seventh chord: A – C – E♭ – G
a half diminished 7th chord

A diminished seventh chord: A – C – E♭ – G♭
a diminished 7th chord


Select a chord root note to see a list of piano chords from that key:

C | C Sharp | D Flat | DD Sharp | E Flat | EF | F Sharp | G Flat | G | G Sharp | A Flat | A | A Sharp | B Flat | B | C Flat