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
Conservatorio Statale di Musica "Gioachino Rossini" Conservatorio Statale di Musica "Gioachino Rossini" The Conservatorio Statale di Musica "Gioachino Rossini" is a music conservatory in Pesaro, Italy. Founded in 1869 with a legacy from the composer Gioachino Rossini, the conservatory officially opened in 1882 with 67 students and was then known as the Liceo musicale Rossini. By 2010 it had an enrollment of approximately 850 students studying for higher diplomas in singing, instrumental performance, composition, musicology, choral conducting, jazz or electronic music. The conservatory also trains music teachers for secondary schools and holds regular master classes. Its seat is the 18th century Palazzo Olivieri–Machirelli on the Piazza