Circle of Fifths

Choose a key to see its relative minor, key signature, scale notes, diatonic chords, and hear the scale in your browser.

Major key

Playback

—Relative minor

—Key signature

—Scale notes

—Diatonic chords

How to use this Circle of Fifths

Explore major keys, relative minor keys, key signatures, and diatonic chords on an interactive circle of fifths. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.