She was also featured in a number of Metropolitan Opera premieres, including Strauss's Arabella, Mozart's Die Entführung aus dem Serail, and Berg's Wozzeck.

With Serge Koussevitzky and the Boston Symphony Orchestra she sang the world premiere in 1948 of Samuel Barber's Knoxville: Summer of 1915, a work which she commissioned.

Beyond the opera, Steber was popular with radio and television audiences in frequent appearances on The Voice of Firestone, The Bell Telephone Hour and other programs.

In 1973 she recorded a live album of arias and songs for RCA Red Seal at the Continental Baths in New York City where a young Bette Midler was then a regular performer.

At the same time she was still heard in recital at Carnegie Hall and sang a noted late-career performance of Strauss's Four Last Songs with James Levine and the Cleveland Orchestra.

A graduate of the New England Conservatory of Music (1938), she also coached a limited number of students (vocal performance majors) there in a "master class" format at least in the years 1975-1977.

[citation needed] She died on October 3, 1990, in Langhorne, Pennsylvania, following heart valve surgery and is interred at Greenwood Cemetery, Wheeling, West Virginia.