During her career, Swiss-born soprano Lisa della Casa was known for her engaging portrayals of Mozart and Strauss roles, particularly Strauss' Arabella. She began her studies at the age of 15 with Margarete Haeser, who remained her only teacher. Della Casa made her debut as Cio-Cio-san in 1941 in Solothurn-Biel and in 1943 became a member of the Zürich City Theater. In normal times she no doubt would soon have been singing in houses in Germany, Austria, and Italy as well, but she remained in neutral Switzerland until after World War II ended in 1945. One of her first major app...