In blues ‘dominant’ 7 chords (A7 or D7 for example) are more common than basic major, minor and sus chords. The A7, D7 and E9 shapes shown here are all you need for a 12-bar blues improv in ...

Guitar lessons: The most common chord progression is known as a ‘12-bar blues’, which, predictably is 12 bars long (eight-, 16- and 24-bar versions are common, too). What the name doesn’t tell you is ...