The high-ceilinged colonial house in Havana that Ramón Sabat converted into a recording studio while founding Panart, Cuba’s first independent label, is where Pérez Prado recorded his earliest mambos and Nat King Cole made his first Spanish-language tracks. It was host to the first cha-cha-chá on record, “La Enganadora,” performed by the composer Enrique Jorrin...