Two late and baleful tragedies by Euripides focus on the ill-starred daughter of Agamemnon. In Aulis, the drama of Iphigenia rages until she is spared. Having escaped to Tauris, Iphigenia finds herself compelled to kill her own brother before the fickle gods intervene. Gluck's operatic settings of the two stories are very rarely staged together, but Pierre Audi's production makes a darkly compelling case for their dramatic unity. All the lead performers here are experienced exponents of Gluck, and together they present a powerfully idiomatic experience.