After the scandalous success of another "ancient" opera, this composer was worried that people would think he was repeating himself. But there were plenty of differences. Instead of the bible, he now turned to a Greek drama by Sophocles, in which the daughter and son of a murdered king exact a terrible revenge. Unlike his earlier opera, for which the composer had adapted the libretto himself, on this opera he turned to a collaborator for the first of many works...