This is a Cubana Airlines Lockheed-1049 Constellation. Cubana flew these magnificent airplanes in the late 1950s on numerous long-haul routes and also on their overnight “Dinner Flights” between Miami and Havana bringing tourist into Havana’s nightclubs.
Cuban pilots who flew these Constellations say they were configured with a full piano installed in the front of the cabin allowing passengers to be serenaded with live music enroute to Havana.