Stevie Ray Vaughan’s distinctive playing style is earmarked by equal parts pure power, intensity of focus, razor-sharp precision and deeply emotional conviction. And then there’s his tone—probably the best Stratocaster-derived sound ever evoked from the instrument.

Nearly half a century has passed since the Allman Brothers Band released their ground-breaking eponymous debut album on Capricorn Records, in 1969. Combining elements of blues, rock, jazz and country, the Brothers forged a unique sound that emphasized virtuoso guitar playing, powerfully emotive vocals, and deft, inspired group interplay and improvisation.

In this edition of In Deep, we'll be taking a look at the guitar work of two essential early blues guitar masters: John Lee Hooker and Lightnin' Hopkins.

Freddie King is among the triumvirate of the greatest and most influential electric blues guitarists ever, revered with equal respect alongside the legendary blues gods B.B King and Albert King. Together, they are often referred to as "The Three Kigns" — all complete masters of their craft and essential subjects of study for any inspiring blues guitar enthusiast.