Founded by Pilar Gadea in 2000, the Cello Ensemble is made up of children from the age of five, motivated by their love for music and this instrument. "Los Chelos de Hamelin" have been presented in important forums, such as the Festival del Centro Histórico, el Museo Papalote, el Anfiteatro Simón Bolívar del Antiguo Colegio de San Ildefonso, la Feria Internacional del Libro Infantil y Juvenil, among others, where they perform Traditional Latin American and Latin American melodies, as well as works by baroque and contemporary composers.