Cayetano César Concepción Martínez, (1909 1974), was a Puerto Rican musician and composer, who brought the music of his native land to Latin American ballroom dancing, and ballrooms all over the world. He popularised the plena as a Latin song style. Concepción was born in Cayey, Puerto Rico, and was a noted composer of his time, writing music based on contemporary Puerto Rican scenes and vistas. He wrote several plenas, mambos, and salsa songs to honor cities such as San Juan, Mayagüez, Ponce, Yauco, Salinas, and Santurce. In addition, he directed his own orchestra for 25 years. He died in Río Piedras, Puerto Rico. The orchestra continues to perform in the present day, often playing in prominent Puerto Rican social circles. Date of birth: May 18, 1921 Location: Manhattan, New York (USA) died on November 13, 1980 in Santurce. Revered as one of the best boleristas Antillean of all time, Joe Valle is remembered, especially, for his brilliant career as stellar vocalist César Concepción Orchestra (1947 - 1954) and for being one of the most splendid representative of Hispanic art scene that took place in the square during New Yorker 50s and first half of the 60. This unique performer, whose real name was Jose Elias Marrero Valley, was the son of Joseph Elias from Bayamon doradeña Valley and Bethlehem Marrero. He was raised in the home of a maternal uncles in the area of La Parada 18 in Santurce. He attended elementary degrees Alejandro Tapia School, secondary, at Central High School. At age 14 (1935) tried his hand Industries native art program, which produced Chirino Cordova brothers and encouraged them WNEL radio station, which had just opened. Later took classes in music theory and piano, having been a pupil of the eminent maestro Manuel Barasoaín Julbe. Although at various stages of his life also consider vocalization techniques, as a singer was basically self-taught. At 17, he joined the outfit Casona July, which he shared with another young performer intended to legend: Juan Ramon Torres