Columbia subject headings:
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791.
Music--England--London.
Harvard subject headings:
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791
Music--England--History and criticism
Musicians
Princeton subject headings:
Haydn, Joseph, 1732-1809.
Mozart, Wolfgang Amadeus, 1756-1791.
Music--England--History and criticism.
Musicians.