The original version of Simon Boccanegra, first performed in 1857, is a masterpiece of concision and vocal delivery, with many important differences from the later 1881 version, including one of Verdi’s most innovative central finales. Sir Mark Elder leads a star cast including Eri Nakimura as Amelia, Iván Ayón-Rivas as her lover Gabriele, William Thomas as Fiesco and the young Argentinian baritone Germán Enrique Alcántara in the title role.