Interactive circle of fifth(circle of fourth).

You can choose key and scale(mode) which you needed to build you melody.
App support both sharp and flat keys, in case there is available both you can choose from it.

For you convenience app build proper chords for you.
You can play chord in built-in player just by hitting proper chord button.

HINT: You can play arpeggio by pressing and holding chord!

As well you can play all scale keys one-by-one by hitting a play button


The circle of fifths(circle of fourth) is the relationship among the 12 tones of the chromatic scale, their corresponding key signatures, and the associated major and minor chords.
It is very helpful tool to understand how to build chords and relationship between chords!

Thank you for downloading app! 
Feel free to leave review.

As well your feedback are always welcome by email:
[email protected]