JIMMIE VAUGHAN The Texas guitar master still considers himself a student of the blues By Eric R. Danton Texas-born guitar slinger Jimmie Vaughan grew up listening to songs by the likes of Jimmy Reed, Johnny Ace and Lonnie Brooks—the kind of old rock ’n’ roll, vintage blues and country that once filled up jukeboxes and crackled from transistor radios. Stations at the time regularly played songs that blurred genre lines, and young Jimmie didn’t...