Start with the tonic
The tonic is the home key. Play it first, then compare the IV and V chords highlighted beside it.
Interactive Circle of Fifths
Select any major or minor key, see its key signature and diatonic chords, then hear each chord played on piano.
Circle of Fifths
Key: C major
Relative key: A minor. Parallel key: C minor.
Chords in C major
Click to playWhat this tool helps with
- See all twelve major keys and their relative minor keys in one interactive circle.
- Understand which major, minor, and diminished chords belong to the selected key.
- Compare the selected key with its relative and parallel key.
- Hear any key or diatonic chord using MusGo’s sampled piano sound.
How to Use the Circle of Fifths
Choose one key, then follow its highlighted chords around the circle before moving to another key.
Compare relative keys
Major and relative minor keys share the same notes and key signature, but they make a different chord feel like home.
Listen to every degree
Play the seven chords below the circle and listen for tonic, dominant, and leading-tone movement.
Transpose a pattern
Move the same Roman-numeral pattern around the circle to hear how one progression works in different keys.
Related practice tools
FAQ
What does moving clockwise around the circle show?
Each clockwise step moves up a perfect fifth and adds one sharp to the key signature. Moving counterclockwise adds flats instead.
Why are major and minor keys paired together?
Each outer major key shares a key signature with the relative minor key directly inside it.
Can I hear the chords shown in the circle?
Yes. Select a key from the circle or click any chord in the table to hear it played with the MusGo piano.