On Sept. 20, 1969, Crosby, Stills, Nash & Young played the fourth of four concerts over two nights at the Fillmore East in New York City. A month earlier, the quartet had played the now-legendary ...

19 and 20, David Crosby, Mr. Stills, Graham Nash and Mr. Young performed four shows over two nights in New York. “Live at Fillmore East, 1969” (Rhino)—a newly released double album of ...