One of the many great things about learning to play blues is that most of the songs have the same chord progression. This progression is called "the 12 bar form" and in this chapter we'll break down the chords that are used in it and play through the form with a backing track, so you can hear how it sounds in a blues context. This chord progression also shows up in country, funk, rock 'n' roll, and many other styles, so by learning this single chord progression you literally learn thousands of songs.