Columbia subject headings:
Harvard subject headings:
Books--Provenance--Congresses.
Composers--Autographs--Computer network resources--Congresses.
Composers--Autographs--Congresses.
Library materials--Digitization--Germany--Congresses.
Music--Databases--Congresses.
Music--Manuscripts--Computer network resources--Congresses.
Music--Manuscripts--Digitization--Congresses.
Scribes--Digitization--Congresses.
Watermarks--Digitization--Congresses.
Princeton subject headings:
Books--Provenance--Congresses.
Composers--Autographs--Computer network resources--Congresses.
Composers--Autographs--Congresses.
Library materials--Digitization--Germany--Congresses.
Music--Databases--Congresses.
Music--Manuscripts--Computer network resources--Congresses.
Music--Manuscripts--Digitization--Congresses.
Scribes--Digitization--Congresses.
Watermarks--Digitization--Congresses.