Judy Collins found herself in the Top 40 with her adaptation of "Amazing Grace." Whales & Nightingales is full of good songs ranging from Bob Dylan's "Time Passes Slowly" to songs by Jacques Brel and Pete Seeger.
Collins also had a hit with her adaptation of the song "Farewell to Tarwathie" which she sang over the accompaniment of Humpback Whales.
It opened new doors for her and for folk music in general.