SOUTHALLRead Southall can sure turn a phrase. “This record is the gasoline for the love machine,” he says of his band’s new album, the exhilarating and self-titled Southall . The proud Oklahoma workingman isn’t exaggerating. The record sparks and burns with 11 crank-it-up songs that expertly combine country, rock & roll, and the dust and grit of the band’s native Red Dirt scene. But there are also glimpses of hard rock and metal, along with easygoing back-porch vibes, the result of a drastic change in the way the group formerly known as the Read Southall Band now makes music: Every member of Southall brings l