Una Voz Un Mundo is partnering with The United Nations Association of El Salvador to launch “Homenaje a Carlos Guastavino y sus Flores” on Oct. 16, 2020 at 7 p.m. EDT in celebration of Hispanic Heritage Month. The concert performance will feature performances by mezzo-soprano Eugenia Forteza, baritone Hector Cisneros, tenor Mario Arevalo, and soprano Clara Iranzo. Pianists on the {…}