Watch the Stinger online guitar lesson by Joe Dalton from 50 Acoustic Blues Licks You MUST Know
This blues lick has a ragtime flavor to it. Notice how the ascending pick up notes are complemented by the descending 6th chords and how they act as the answer to the ascending melody. I think the use of chromatics brings out the ragtime feel. Start out slowly with this one. The speed and the smoothness will come with a little bit of practice.