Circle of Fifths

Interactive circle of fifths. The outer ring lists major keys; the inner ring lists their relative minors. Click any wedge to inspect the key.

What it shows for a key

• Notes of the major scale and the relative natural-minor scale.
• Key signature (sharps/flats count).
• Dominant and subdominant chord roots.
• Diatonic chords with Roman numerals (I ii iii IV V vi vii°).