Circle of Fifths Explorer
Move around the circle of fifths from any major key.
Quick answer: enter your details below and click Explore the Circle — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Enter your values in the fields provided.
- Click Explore the Circle.
- Read the result and adjust an input if you want a different outcome.
About this tool
The circle of fifths organises keys by steps of a perfect fifth, which is why neighbouring keys share most of their notes. Pick a starting key, a direction, and a number of steps, and this tool lands on the new key and counts its accidentals.
Frequently asked questions
What do I enter to get a result?
Fill in every field with your own numbers or choices, then run the tool. Empty number fields count as zero, so check them before you trust the output.
Can I reuse this result elsewhere?
Yes. The result is calculated in your browser from the values you entered, so you can copy the numbers into your own notes or plan.