Information:  - Cuba, officially the Republic of Cuba, is a country comprising the island of Cuba as well as Isla de la Juventud and several minor archipelagos. Cuba is located in the northern Caribbean where the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean meet. It is south of both the U.S. state of Florida and the Bahamas, west of Haiti, and north of Jamaica. Havana is the largest city and capital; other major cities include Santiago de Cuba and Camagüey. Cuba is the largest island in the Caribbean, with an area of , and the second-most populous after Hispaniola, with over 11 million inhabitants.  - Santa Clara is the capital city of the Cuban province of Villa Clara. It is located in the most central region of the province and almost in the most central region of the country. With a population near a quarter million, Santa Clara is the 5th largest Cuban city by population.  - The Cuarteto d'Aida was a famous Cuban female singing group . It was founded and directed by the pianist Aida Diestro ( 1924 -- 1973 ) in 1952 . Diestro picked four brilliant young singers to form the group : Elena Burke , Moraima Secada and the sisters Omara and Haydée Portuondo . One of the group , Omara , is still alive and performing today ; she was brought back into prominence as part of the Buena Vista Social Club phenomenon . The group was part of a post WWII musical fashion known as filín ( feeling ) . This was a post-microphone jazz - influenced song movement related to close - harmony groups . They could sing any type of Cuban song , though the bolero was central to their style . The group was constantly heard on the radio , and toured many countries both before and after the Cuban revolution . Amazingly , the original group only made one LP record . Recordings after 1960 did not include any of the original singers . When any of the girls left , or were otherwise unavailable , substitutes were found , many of them also highly talented . Teté Caturla ( Teresa García Caturla ) joined them in 1963 , and led them after Aida 's death in 1973 . Leonora Rega , Marisela Ramirez , Georgina Sánchez , Rosa Sánchez , Magaly Linares , Niurka Galarraga , and Betty Tamayo are others who have sung with the group .  - Moraima Secada (born María Micaela Secada Ramos (Santa Clara, Cuba, 10 September 1930  Havana, 30 December 1984), known to her admirers as "La Mora" (the moor), was a temperamental singer who created a special style of interpretation within the Cuban music genre of filin (feeling).  - Havana (Spanish: "La Habana") is the capital city, largest city, province, major port, and leading commercial centre of Cuba. The city proper has a population of 2.1 million inhabitants, and it spans a total of  making it the largest city by area, the most populous city, and the third largest metropolitan area in the Caribbean region. The city extends mostly westward and southward from the bay, which is entered through a narrow inlet and which divides into three main harbours: Marimelena, Guanabacoa and Atarés. The sluggish Almendares River traverses the city from south to north, entering the Straits of Florida a few miles west of the bay.  - Elena Burke (born Romana Elena Burgues Gonzalez on February 28, 1928 in Havana, Cuba  June 9, 2002 in Havana, Cuba) was a revered and popular Cuban singer of boleros and romantic ballads.  - Adelaida Diestro Rega (21 December 1924  28 October 1973), better known as Aida Diestro, was a Cuban pianist and the director of the famous vocal group Cuarteto d'Aida.   - The Buena Vista Social Club was a members' club in Havana, Cuba, that closed in the 1940s, as well as a 1990s band, a 1997 album, a 1999 film, and an unofficial brand name representing the musical spirit of the original Havana club.    Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'cuarteto d'aida'.  Choices: - area  - band  - bay  - brilliant  - capital  - city  - club  - country  - december  - february  - film  - genre  - gulf  - metropolitan area  - music genre  - name  - ocean  - october  - part  - phenomenon  - province  - region  - republic  - september  - singing  - social club  - style  - three  - villa
Answer:
band