The classic Broadway ingenue of the 1950s and ’60s, she made her name as the original Marian the Librarian in The Music Man and Cunégonde in Leonard Bernstein’s Candide. After a difficult period of alcoholism and weight gain, she reinvented herself as a cabaret star – one of whom no less than Stephen Sondheim said, “No one sings theater songs with more feeling for the music or more understanding of the lyrics than Barbara.”