King Biscuit has been doing the small Shinjuku blues-bar thing since 1989, with whisky and records as the core arrangement. It is a listening bar in the older Japanese sense: compact, specialised, and built around the owner's taste rather than a design brief. The music policy leans blues, with jazz and neighbouring records close by. Gear details are not the headline here. The room's value is in its focus, its long-running rhythm, and the fact that Shinjuku still has places where one genre can carry a whole bar. Best for whisky, blues records, and a slower Shinjuku night.