Chord Piano Atlas
Browse chord-sheet style vocabulary in every root, from simple triads to advanced color/extended chords. Click Show to visualize on piano, then use Play for instant audio.
Notation varies
Some extended and suspended symbols do not have one universal lead-sheet meaning. Cards marked
Notation varies show the exact spelling used in this atlas and link to references that explain the ambiguity.
Simple Chords
Typical chord-sheet basics: triads, sus, power, and sixth chords.
7th Chords
Core 7th and added-tone forms used across pop, jazz, and film writing.
Complex Chords
Extensions and alterations for advanced color (9, 11, 13, altered dominants).