Watch the Massive online guitar lesson by Chris Buono from Guitar Lab: Blues Progressions
As the name implies this minor blues progression goes for broke and throws a sizable bag of tricks at you in 12 bars. You have Dorian IV7 chords in bars 2 and 5, a back cycling ii-V in bar 8 that sets up the bVI7 chord, which by the way is a cool twist on what was just played in the same bar in the previous set of "Thrill is Gone" changes; and a tritone m7 sub at beat 3 of bar 11 to a half step resolution down to the iim7 chord that is 50% of the final cadence. Man, that IS massive.
Continuing to live up to the name of this progression, a massively important chordal approach in regards to minor jams in general is laid out for you in the third chorus--quartal harmony. In quartal harmony you have chords that are built upon stacked 4ths. They afford you and the soloist massive flexibility, to say the least. While this is not the first time we've played these type of chords here in Blues Progressions, we're gonna geek on it for real this time around to make sure you know what's what. Regardless, be sure to key in on the who, what, how, and why of this approach and get it into your bag if you haven't already.