Piano Theory Master - Circle of Fifths

Circle of Fifths

Key Signature Info

Select a key from the circle to see details

Interactive Piano

Current Key: None selected

Select a key from the circle to see scale notes

Common Chord Progressions

Chord Builder

Select a root note and chord type

Music Theory Reference

What is the Circle of Fifths?

The circle of fifths is a diagram showing the relationship between the 12 tones of the chromatic scale, their corresponding key signatures, and the associated major and minor keys.

How to Use This Tool

• Click keys on the circle to see their scales and chords
• Play notes on the virtual piano
• Explore common chord progressions
• Build custom chords with the chord builder

Practice Tips

• Practice scales in all 12 keys
• Memorize the order of sharps and flats
• Identify relative major/minor pairs
• Experiment with chord progressions