Soulful. That sums up the sound Gary Clark Jr.’s “The Story of Sonny Boy Slim”. It’s a very versatile album packed with emotional guitar riffs, and at times, he also throws in a very funky vibe. He has managed to mix together blues, rock, and hip hop to create a sound that gives a nod to the blues, yet brings it to the present with a slight hint of hip hop. Some of the songs evoke a very 70’s blues-rock vibe, like “Stay” and “Grinder”. However, not everything is mellow and heavy.