Here is a version of the "Circle of Fifths" tool in my
book on Improvisation - but this one you don't have to
cut out and put together - it works right on the computer.You can see that, right now, the wheel is set to the key of C - the I chord is C, the V chord is G, the ii chord is Dm, and so on. To turn the wheel to a different key, just click one of the red arrows at the top of the wheel and the inner wheel will rotate to the left or right.