As its Italian name suggests, Il Complesso Barocco was an ensemble devoted mainly to the performance of Baroque music. The group played an essential role in the revival of Baroque opera, not least because of the scholarship and pioneering work of founder and conductor Alan Curtis, who fashioned authentic versions of operas by Monteverdi (L'incoronazione di Poppea), Handel (Admeto), and other Baroque stalwarts. Over the years, Il Complesso Barocco came to be identified with the operas of Handel and Vivaldi and with late-madrigal fare. That said, the repertory was hardly limited...