Columbia subject headings:
Composers--Hungary--Catalogs.
Ligeti, György, 1923-2006--Manuscripts--Catalogs.
Music--Manuscripts--Switzerland--Basel--Catalogs.
Paul Sacher Stiftung (Basel, Switzerland)--Catalogs.
Harvard subject headings:
Composers--Hungary--Catalogs.
Ligeti, György, 1923-2006--Manuscripts--Catalogs.
Music--Manuscripts--Switzerland--Basel--Catalogs.
Paul Sacher Stiftung (Basel, Switzerland)--Catalogs.
Princeton subject headings:
Catalogs.
Composers--Hungary--Catalogs.
Ligeti, György, 1923-2006--Manuscripts--Catalogs.
Music--Manuscripts--Switzerland--Basel--Catalogs.
Paul Sacher Stiftung (Basel, Switzerland)--Catalogs.