Robert Lee “Lil Poochie” Watson, 65, and Hezekiah Early, 82, have some years between them, though they’ve shared decades of playing the blues. The Natchez, Mississippi natives started hooking up back in the late ’60s and early ’70s. Guitarist and vocalist Lil Poochie would come in to perform with drummer, vocalist and harmonica player Hezekiah and the House Rockers band when the group’s guitarist, Elmo Williams, couldn’t make a date. “That went on for yea...