In this video, harpists Martin Portillo and Marcelo Rojas join guitarist Alfredo Gryciuk and bassist Ariel Burgos in a "dueling harp" rendition of the classic polca "Pájaro campana (The Bell Bird)." This song is featured on the Smithsonian Folkways album Maiteí América: Harps of Paraguay, available on CD and digital.

Paraguayan harp music is unique, and stands out as a favorite for harpists the world over-not least for its driving rhythms, compelling melodies, and rich ornamentation. "Greetings, America," Maiteí América in the Guaraní Indian language, boasts three generations of Paraguay's best harpists spinning out classic compositions steeped in over four centuries of history. The preeminent, tradition-hewn polca paraguaya musical form is infused with intensely fresh, mind-opening improvisations by master musicians Nicolás Caballero, Martín Portillo, Marcelo Rojas, Miguel Ángel Valdez, and Kike Pedersen.