Red's Lounge is the Clarksdale room many blues travellers hope still exists: small, informal, smoky in spirit even when the air is clearer, and centred on whoever is playing that night. It is not a polished concert venue, which is exactly why people seek it out.
Schedules can shift, so check locally before counting on a specific show. When it is on, Red's gives you a better sense of Delta music as a social habit rather than a museum subject.