He is best known for his popular compositions, primarily guarachas such as "Anabacoa", recorded by Beny Moré and Arsenio Rodríguez among others, and also "Plena española", made famous by Billo's Caracas Boys.
[1] Born in San Juan on April 22, 1906, son of Lino Ramírez, Spanish, and Marta Rivera, from Bayamón, Juanchín became interested in music from a young age.
[2] Ramírez was also a member in the early 1930s of the Grupo Aurora, which featured famed cuatro player Ladislao Martínez, guitarist Moncho Dávila and harmony vocalist Don Felo.
[2] He spent many years with Morales, also playing with Machito in New York, before settling back in Puerto Rico, where he established new groups such as the Cuarteto Modelo and Los Pleneros del Palmar.
[6] The Pleneros were founded as the house band of TV channel WIPR-TV, and often featured Rafael Cepeda as lead singer, although the main vocalist was Tasso Peña.