Watch the Major 3rd Blues online guitar lesson by Tom Wolfe from 50 Hard Bop Blues Licks You MUST Know
Generally most guitarists learn the blues scale or minor pentatonic scale early as they progress in their practice. It is an important component in the vocabulary of the improvising guitarist. But overlooked in those scales is the major 3rd of the chord. A very important and useful tone in melodic development. This lick is a very simple way to stress the tone melodically in the first four bars of a blues chorus and still have a very bluesy and swinging sound.