Der Schauspieldirektor
Kogan's operatic roles have included Queen of the Night in "Die Zauberflöte", Zerbinetta in "Ariadne auf Naxos", Blonde in "Die Entführung", Madame Herz in "Der Schauspieldirektor", Greta Fiorentino in "Street Scene," and Fiordiligi "Cosi fan tutte" at the opera houses of Avignon, Indianapolis, Limoges, Manitoba, Toulon, Toulouse and in Oxford. She has been described as "a lively actress" with "a warm voice, round, elegant and expressive phrasing, and a remarkable knack for coloratura passages", "up to the challenge of a stratospheric soprano line".