anchor: Casa de la Mesica (salsa; Avenida 35 and Calle 20, Miramar), Casa de la Trova (San Lazaro between Gervasio and Belascoan, Central Havana), and El Zorro y el Cuevo, (jazz; Calles 23 y O, Vedado).
positive: Casa de la Trova lies between Gervasio and a location in Central Havana.
negative: In San Lazaro is Casa de la Mesica, its the only place in the whole area.