A final example, using two common turnarounds, one after another. By the way, a "turnaround" is a chord progression at the end of a tune or section of a tune that leads back to either another section or the beginning of the section that it ends.

In this case, the first 4 chords are a turnaround based on the diatonic changes of the key of F: iii7-vi7-ii7-V7. The second 4 chords show a variation: bIII7-bVI7-bII7-V7. Notice how both progressions lead back to F, the tonic. Also notice that the pedal tone -- the root of V7 (C7, in F major)--is played on the offbeats.

Not only is this a nice thing to do on turnarounds, but it makes a swell introduction or coda to tune that might otherwise lack one.