Warner has defied an extensive scope of art with celebrated works in theater, opera, classical music, and hybrid productions, serving as Resident Director of the Royal Shakespeare Company and becoming the first woman to win an Olivier Award for Best Director, before joining the National Theatre as Associate Director.

While other performing arts industries make headway in diversity, equity, and inclusion, opera has a unique challenge from its systemic history that has seemingly been engraved in its art and has taken longer to shed itself from.