12 Bar Blues
Diatonic Major Circle of 5ths
Diatonic Minor Circle of 5ths
Note that there are variations for the minor circle. The example here is just one of them.
Other Common Sequences
Full Circle of 5ths
I - vi - ii - V7
I - IV - I - V
I - IV - ii - V
I - IV - vi - V
i - VI - III - VII
i - iv - v - i
i - vii - vi - v7