Chord types

Name: Tomus - music theory tutor
Rating: 4.9 (52 reviews)
Author: Konstantin Khalyushev

Every common chord type, built from the root upwards. Each page shows the stack of intervals, the shape on a keyboard and stave, all the inversions, and the chord written out on all twelve roots.

Triads

Major triad1 – 3 – 5 · C = C E G
Minor triad1 – ♭3 – 5 · Cm = C E♭ G
Diminished triad1 – ♭3 – ♭5 · Cdim = C E♭ G♭
Augmented triad1 – 3 – ♯5 · Caug = C E G♯

Seventh chords

Major seventh1 – 3 – 5 – 7 · Cmaj7 = C E G B
Dominant seventh1 – 3 – 5 – ♭7 · C7 = C E G B♭
Minor seventh1 – ♭3 – 5 – ♭7 · Cm7 = C E♭ G B♭
Half-diminished seventh1 – ♭3 – ♭5 – ♭7 · Cm7♭5 = C E♭ G♭ B♭
Diminished seventh1 – ♭3 – ♭5 – ♭♭7 · Cdim7 = C E♭ G♭ B𝄫

Suspended chords

Suspended second1 – 2 – 5 · Csus2 = C D G
Suspended fourth1 – 4 – 5 · Csus4 = C F G

Added-note chords

Major sixth1 – 3 – 5 – 6 · C6 = C E G A
Added ninth1 – 3 – 5 – 9 · Cadd9 = C E G D

For which chords belong together in a key, see the key pages, or Learn: chords for how chords are constructed in the first place.