Circle of Fifths

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Make key relationships easier to see and hear. Explore the circle of fifths, key signatures, scales and the chords around a tonal center. Compare nearby keys and discover paths for smoother modulation as you write, arrange or study music. Circle of Fifths is a focused theory tool for musicians, teachers and songwriters. Use the full app free in your browser, with optional Ad-Free access to remove cross-app recommendations. Also available on Android.

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