As the summer fades away, Judy Collins lends a touch of nostalgia to Wolf Trap with thoughtful new numbers and vintage songs that marked a moment in history and influenced a generation. During her 52 years of music making, Collins has performed at Wolf Trap regularly and recalls conversations with Catherine Filene Shouse. When the wind rustles the trees of the farm park, some say they hear echoes of her sweet voice singing “Both Sides Now.”

Indeed there are several sides to Collins’ talents. Her folk artist persona won a Grammy Award in 1968. The classical piano student remembered her unbending teacher in the documentary, “Antonia: A Portrait of the Woman,” nominated for an Academy Award in 1975. The fervent activist campaigned for just causes in her songs and in the courthouse. The author has penned one novel and six nonfiction books, two or them memoirs, the most recent being her reflections on the suicide of her son, “Sanity and Grace: A Journey of Suicide, Survival and Strength.”