She played Carnegie Hall in 1957 as part of a "Folk Jamboree", with Sonny Terry, Earl Robinson and others, and in 1958 with musical satirist Tom Lehrer.
In 1968, she achieved recognition as one of the stars of the off-Broadway revue Jacques Brel is Alive and Well and Living in Paris, which was co-written by her husband, Eric Blau.
She later starred in the 1972 Broadway incarnation of Jacques Brel is Alive and Well and Living in Paris and in the 1975 motion picture version, produced by the American Film Theatre.
[4] "Jacques Brel's music is effective because it deals with the most basic of human passions", said Stone in a 2008 interview with the Marin Independent Journal.
Blau told the New York Times that "in her 60s she began experimenting with LSD-assisted psychotherapy to combat anxiety and became an advocate of that treatment.