Question: Edgar Vincent was an American publicist and actor of German birth, He went on to specialize in being a publicist for opera singers, helping shape and forward the careers of major stars like which French-American operatic soprano and actress who had an active career from the late 1920s through the early 1970s?
Sentence (from "Edgar Vincent"): Vincent also worked for Mikhail Baryshnikov and a handful of musicians other than opera singers, including conductors Erich Leinsdorf, Leopold Stokowski and Georg Solti; the cellist Mstislav Rostropovich; and the violinist Isaac Stern.
Relevant evidence: No