Circle of Fifths Quiz

Enter awnsers into the toggleable piano keys.
Submit awnsers by tapping in the space below the piano keys.
Display the circle of fifths diagram by holding in the space above the piano keys.

The app can ask three types of questions. Types can be toggled via the buttons at the top of the screen.
- Interval questions: enter the note which is a 5th/4th above/below.
- Scale questions: select all notes in the scale.
- Relative key questions: select the note of the relative key.

I made this for myself as a way to stay productive away from an instrument. It's probably not very accessible, but I hope it helps you too :)