Circle of Fifths
The interactive circle of fifths: click any key to see its key signature, its notes, its diatonic chords and its relative major or minor.
Each step clockwise is a perfect 5th up — and adds one sharp (or removes one flat). Neighbouring keys share six of seven notes.
Key of C major
Key signature: No sharps or flats · Relative minor: A minor (A – B – C – D – E – F – G)
Notes: C – D – E – F – G – A – B
Diatonic chords: c major · d minor · e minor · f major · g major · a minor · b dim
Outer ring: major keys. Inner ring: their relative minors. Click an inner key to jump to its relative major.
How it works: Go clockwise and each key is a 5th higher with one more sharp; go anticlockwise and each key is a 4th higher with one more flat. Opposite keys (C and F#/Gb) share no notes at all.
Try next: Scale Finder · Guitar Scale Finder · Piano Scale Finder