Circle of fifths

How to read the circle of fifths

1. Moving clockwise, each key is a perfect fifth higher and adds one sharp. Counter-clockwise adds one flat.
2. The inner ring shows each key’s relative minor — it uses the same notes.
3. Keys next to each other share six of their seven notes, so they sound good together. The I, IV and V chords of a key are always neighbors on the circle.
4. Click any key to see its scale and hear its chords.