Passion, loyalty and political conspiracy are the three pillars of Un ballo in maschera (1859), the 'most operatic of all operas'. Set in 19th-century Boston, Mario Martone's atmospheric production for the Teatro Real brings out all the innate theatricality and drama of Verdi's work. World famous Argentinean tenor Marcelo Álvarez, in the role of Riccardo, leads a fabulous cast including Lithuanian soprano Violeta Urmana as his lover Amelia, and Elena Zaremba as the witch Ulrica. Jesús López Cobos conducts the Madrid Symphony Orchestra and Ch...