Watch the Single Note Blues 12 Bar online guitar lesson by TrueFire from Play Blues Guitar 1: Quick-Start for Beginners

The cool thing about single note blues riffs is that they are actually "outlining" a chord in some way. Usually emphasizing the notes from the chord in order to be able to play a series of riffs where you could alternately play a chord progression. Here you will put the riffs together into a 12 bar progression to complete this blues feel.