Columbia subject headings:
Beckett, Samuel, 1906-1989--Knowledge and learning--Congresses.
Songs and music.
Harvard subject headings:
Beckett, Samuel, 1906-1989--Knowledge--Music--Congresses.
Princeton subject headings:
Beckett, Samuel, 1906-1989--Influence--Congresses.
Beckett, Samuel, 1906-1989--Knowledge--Music--Congresses.
Music and literature--History--20th century--Congresses.