Columbia subject headings:
Bluegrass music--Kentucky--History and criticism.
Country music--Kentucky--History and criticism.
Folk music--Kentucky--History and criticism.
Harvard subject headings:
Bluegrass music--Kentucky--History and criticism.
Country music--Kentucky--History and criticism.
Folk music--Kentucky--History and criticism.
Princeton subject headings:
Bluegrass music--Kentucky--History and criticism.
Country music--Kentucky--History and criticism.
Folk music--Kentucky--History and criticism.