Peter Seeger was born on May 3, 1919, to Charles Seeger, a musicologist, and Constance de Clyver Edson Seeger, a concert violinist. His parents later divorced.

Young Pete became enthralled by rural traditions when his father took him to a square-dance festival in North Carolina. “I liked the strident vocal tone of the singers, the vigorous dancing,” he said. “The words of the songs had all the meat of life in them.”

Along with many elders of the protest-song movement, Mr. Seeger felt betrayed when Bob Dylan appeared at the 1965 Newport Folk Festival with a loud electric blues band. Reports emerged that Mr. Seeger had tried to cut the power cable with an ax, but witnesses including the producer George Wein and the festival’s production manager, Joe Boyd (later a leading folk-rock record producer), said he did not go that far. (An ax was available, however. A group of prisoners had used it while singing a logging song.)