Music Theory
Circle of Fifths
Decode music theory. Understand key signatures, relative minors, and diatonic progressions in an interactive wheel.
Interactive Wheel
Click any key to explore its relationships
Key Details
C Major
Key Signature
No sharps or flats
Relative Minor
Am
Diatonic Chords (I, ii, iii, IV, V, vi, vii°)
C
Dm
Em
F
G
Am
Bdim
Common Progressions
- C - F - G - C
- Dm - G - C
- C - Am - F - G
- C - G - Am - F
- C - F - Am - G
The Circle of Fifths is a powerful tool for understanding music theory. Each adjacent key is a perfect fifth (7 semitones) apart.
Click on any key to see its diatonic chords, relative minor, key signature, and common chord progressions.