Sandra Warfield performed with the Zurich Opera, where in 1961 she sang Katerina in the world premiere of Martinů's "The Greek Passion". They returned to the United States, and the Metropolitan Opera, in the 1960s. Her performances at the Met included Ulrica in Giuseppe Verdi's "Un ballo in maschera", Berta in "The Barber of Seville" by Gioachino Rossini, Marcellina in "The Marriage of Figaro", Maddalena in "Rigoletto" by Verdi and Erda in Richard Wagner's "Siegfried", totaling 172 performances. She sang the role of Delilah in "Samson and Delilah", with Richard Tucker performing as Samson. In her farewell performance in January 1972, Warfield
Westbrook-Rossini, Zürich Live 1986 swinging, and joyful it is breathtaking. ... Live, it's even tougher to grasp because there is no safety net, no alternate takes or editing to round out the rough spots. It's all one can do to take it in and not roll about the floor with your hands over your head, tears streaming in such blessed out delight you will cause your loved ones unnecessary worry. You'll listen for decades and still not comprehend the wonder if it. Yes, it is that good". All compositions by Gioachino Rossini with additional material by Mike Westbrook Westbrook-Rossini, Zürich Live 1986 Westbrook-Rossini, Zürich