She was one of the pre-eminent choral conductors of the 20th century,[1] having given the world premiere or American premiere of many important works by Benjamin Britten, Leonard Bernstein, Samuel Barber, Aaron Copland, Irving Fine, Gunther Schuller, Daniel Pinkham, and others.
Subsequently, she became Assistant Professor of Music at Bryn Mawr College, whose choir she conducted.
In 1967, deVaron took the NEC Chorus on tour to the Soviet Union, as part of the Cultural Exchange Program, for which she received the Boston Medal for Distinguished Achievement.
In the summer of 1977, the Israeli Government invited deVaron to conduct Kibbutz choirs and to lead a choral workshop in Israel.
As a result, the following summer (1978), the government invited deVaron to return, this time with the NEC Chorus, where they participated in the 30th Anniversary celebration of the founding of Israel.