3 6 2 5 1

3- 6- 2- 5 1 is a common chord progression because it moves in fourths. The example sequence below is in the key of A Major.

Let's take a look at some more complex jazz style chord shapes. This is the same chord progression, 3- 6- 2- 5 1, in G Major

There are a few variations that are common which include non-diatonic notes, changing minor chords to major or dominant but still keeping the fourths movement.