Question: Who is the American musician and singer who performed a version of the traditional English folk song "The Cuckoo" and began his performance career at Southern Appalachian medicine shows?
Sentence (from "Clarence Ashley"): After his "rediscovery" during the folk revival of the 1960s, Ashley spent the last years of his life playing at folk music concerts, including appearances at Carnegie Hall in New York and at the Newport Folk Festival in Rhode Island.
Relevant evidence: No