Circle of Fifths
Interactive circle showing key signatures, relative keys, and diatonic chords.
C Major
No sharps or flats
Related Keys
Relative: AmParallel: Cm
Diatonic Chords
ICmaj
iiDm
iiiEm
IVFmaj
VGmaj
viAm
vii°Bdim
How to Use
- Clockwise = add sharps (move by 5ths: C → G → D → A...)
- Counter-clockwise = add flats (move by 4ths: C → F → Bb → Eb...)
- Inner ring = relative minor keys (same key signature)
- Adjacent keys = closely related, good for modulation