Also slated are Armonia Huasteca, a trio from the mountains of central Mexico that plays ranchera music with violin and lovely three-part harmonies; Edwin Colon Zayas y Su Taller Campesino, a superb Puerto Rican jibaro outfit led by a virtuoso of the cuatro, a small guitar with ten strings; and Irene Farrera, a Venezuelan-born singer-songwriter who now lives in Eugene, Oregon.