The New York Post said the following of her debut, "Adele Addison is about the most appealing interpreter of the little Parisian seamstress yet to appear on the City Center stage.

Small, frail looking, and pretty, Miss Addison enhanced these assets by acting and singing with moving poignancy and sincerity.

"[6] That same year, Addison was invited by Aaron Copland to perform the world premiere of his Dirge In Woods at a concert sponsored by the League of Composers.

In 1961 she was chosen by Charles Münch as the soprano soloist in the World premiere of Francis Poulenc's Gloria with the Boston Symphony Orchestra.

In 1961 he invited her to sing the soprano solos in the world premiere of Lukas Foss' Time Cycle' with the New York Philharmonic.

[10] Other noted performances by Addison include the world premiere of Lester Trimble's Canterbury Tales and her interpretation of Debussy's L'Enfant prodigue.

For many years, she was also on the faculty, serving for a time as Chair, of the Voice Department at the Manhattan School of Music, which awarded her an honorary doctorate in 2001.

[11] Addison once said, "What I try to pass on to my own students at the Manhattan School of Music is to make them aware of their own abilities, to know how much they need to know in order to be a singing musician.

"[8] In 1958, Addison married Norman Berger, a senior research scientist and clinical professor of prosthetics-orthotics education in the Department of Rehabilitation Medicine at New York University.