Columbia subject headings:
Haydn, Joseph, 1732-1809--Congresses.
Haydn, Joseph, 1732-1809. Symphonies.
Harvard subject headings:
Haydn, Joseph, 1732-1809--Congresses.
Haydn, Joseph, 1732-1809. Symphonies.
Princeton subject headings:
Haydn, Joseph, 1732-1809. Symphonies--Congresses.
Symphonies--Analysis, appreciation--Congresses.