The Universal Soldier, by Buffy Sainte-Marie, was one of the first songs to contribute to the 1960s' anti-war movement. By the late 1960s, Gordon Lightfoot, Joni Mitchell (image), Leonard Cohen, and Neil Young also became known for their thoughtful lyrics and unique performance styles.
Neil Young, in particular, emerged as a successful and influential figure, exploring highly contrasting folk, country, and hard rock idioms over the next several years. He accompanies himself on guitar, harmonica and piano. Heart Of Gold (1972) is one of his best songs. He never relinquished his Canadian citizenship although he often sings on US themes and subjects.
In the 1970s, Anne Murray became an international star by interpreting songs in a pop-oriented style. She is one of the most successful Canadian pop superstar and paved the way for others like Celine Dion, Shania Twain and Sarah McLachlan. Snowbird (1970) was followed by so many other hits, Murray is still as famous today and her songs are still being played all over. Blogger had to opportunity to enjoy a live performance by Anne Murray in Winnipeg, Manitoba in the mid 80s.
Reference: (1) Canadian Encyclopedia Historica/Music In Canada. (2) Wikipedia. (3) Neil Young/Anne Murray Websites.