Alternative folk is a music genre. The Daily Telegraph wrote of Bob Dylan on the occasion of his 2016 Nobel Prize in Literature: "Best known for his early hits such as "Blowin' in the Wind" and "Like a Rolling Stone", Dylan was a key member of the Sixties alternative folk movement, but shocked his contemporaries by becoming one of the first folk musicians to "go electric" in 1965."
References
Alternative folk Wikipedia(Text) CC BY-SA