"JB Hutto is still popular because his blues were so essential and broken down to a really pure form. You could never get more authentic blues, and he wrote all his tunes, so when you hear JB, you hear his lyrics, his singing, his guitar, his slide and his band." Dave Weld: Nightwalk Blues On The Slide Chicago blues is Dave Weld’s lifeblood. From his beginnings mentored by JB Hutto to his decades…