Charts of the Most Common Diatonic Chord Progressions

You may notice that these charts follow a "circle of fifths" series of progressions, where the root movement is by fifths. Looking at the minor mode chord progression chart from left to right the roots and their interval movement are G ↓5th → C ↓5th → F ↓5th → B ↓5th → E ↓5th → A. We could extend this one more fifth down to D, which would entain the entire circle of fifths chord progression series. Chord progressions where the roots move by 5ths (or 4ths, the inversion of a 5th) are considered the strongest. This idea plays right into the common "circle of fifths" chart that is very helpful for memorizing major and minor key signatures and the order in which flats and sharps are added to key signatures.