PLAY · LISTEN · DISCOVER88 piano keys · 120 chords · Free
THE CHORD ATLAS / 29 EXPLORED

Find your
next harmony.

Twenty-nine individually written piano chord lessons: all twelve major and twelve minor triads plus selected dominant, major and minor sevenths. Search by name, or browse major, minor and dominant seventh sounds. Every lesson includes playable notes and clear inversion diagrams.

Showing all 29 chords

Major chords

Bright, stable three-note harmonies: root, major third and perfect fifth.

Minor chords

Minor thirds create a darker color, while the perfect fifth stays the same.

Seventh chords

Compare dominant 7 (1–3–5–♭7), major 7 (1–3–5–7), and minor 7 (1–♭3–5–♭7). Explore the differences ↗

Explore beyond 29 lessons

The 29 written lessons cover the full chromatic major/minor triad set and five selected seventh chords. Browse and play 120 core chord combinations in the interactive library, without generating hundreds of thin SEO pages.

Open 120 chord atlas ↗