Watch the The Jazz Blues Sound online guitar lesson by David Hamburger from Take 5: Jazz Blues Soloing

Jump blues, swing, bebop and hard bop are all various phases in the development of jazz. Musicians in each of these eras had their own idiomatic ways of approaching the blues form, beginning with the differences in how they thought about the blues chord progression itself. But from the 1930's through the 1960's, you'll find two relatively constant practices: the development of flowing, eighth note lines to create the swing feel, and the combination of blues licks and "playing the changes" to create contrast.