Columbia subject headings:
Literature, Modern--20th century--History and criticism.
Literature, Modern--20th century--Themes, motives.
Literature, Modern--21st century--History and criticism.
Literature, Modern--21st century--Themes, motives.
Popular music in literature.
Harvard subject headings:
Music and literature--Germany--History--20th century.
Popular literature--Germany--History and criticism.
Popular music in literature.
Popular music--Germany--History and criticism
Princeton subject headings:
Literature, Modern--20th century--History and criticism.
Literature, Modern--20th century--Themes, motives.
Literature, Modern--21st century--History and criticism.
Literature, Modern--21st century--Themes, motives.
Popular music in literature.