About

Welcome!
The Modal Signature Finder helps to figure out the key signature of any key in any mode. To do that, enter the key, its accidental and the mode and click on the Find Out button. For example, if you want to find the key signature of F minor, then you need to input F as the key, natural as the accidental and Aeolian/Minor as the mode; the result is 4 flats.

You can try any combination of inputs. Say, you want to find out which flat key has 2 flats in the mode of lydian, the input fields would look something like: note, flat, lydian, 2b; and the result is E.

Want to do all of this quickly in your head?

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Want to know more about the code part?

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