Dimmed lighting, baroque decor and cabaret-style tables facing the raised stage set the scene for intimate gigs at this atmospheric former royal forge (after which the street is named). There's no entry fee, but you're expected to dine (or at least drink). Acts range from emerging to established artists across genres as diverse as jazz, hip-hop, rock, metal and disco.
Saturday's jam-session brunch takes place at 11.30am and again at 2.30pm; on Sundays, there's a jazz brunch at the same times. Past performers have included Ben Harper, the Cure, Placebo and Radiohead.