From the TPAC web site:
Strings of Fire ("Cuerdas de Fuego") is a lively, interactive show with Ramón Romero on the harp, the national instrument of his native Paraguay, Santiago Maldonado of Mexico (guitar and vocals) and percussionist Carlos Caro of Cuba. Much smaller than its cousin in the orchestra, the Paraguayan harp often sounds like a guitar, from rapidly picked melodies to rich combinations of chords. The internationally renowned artists use a variety of fun-to-watch techniques to play traditional and contemporary music from Latin America.
The City Paper published an advance review here, mentioning that "the lineup also includes equally marvelous Chilean guitarist and vocalist Rafael Manriquez."