Columbia subject headings:
Aachen (Germany)
Catholic Church--Liturgy--History.
Charlemagne, Emperor, 742-814.
Charles IV, Holy Roman Emperor, 1316-1378.
Church music--Germany--Aachen.
Frederick I, Holy Roman Emperor, approximately 1123-1190.
Luyr, Adam.
Mangon, Johannes, approximately 1525-1578.
Music--Germany--Aachen.
Music--Germany--History and criticism.
Tzamen, Thomas.
Harvard subject headings:
Aachen (Germany)--History.
Catholic Church--Liturgy--History.
Charlemagne, Emperor, 742-814.
Charles IV, Holy Roman Emperor, 1316-1378
Church music--Germany--Aachen.
Frederick I, Holy Roman Emperor, approximately 1123-1190.
Music--Germany--Aachen--History and criticism.
Princeton subject headings:
Aachen (Germany)
Catholic Church--Liturgy--History.
Charlemagne, Emperor, 742-814.
Charles IV, Holy Roman Emperor, 1316-1378.
Church music--Germany--Aachen.
Frederick I, Holy Roman Emperor, approximately 1123-1190.
Luyr, Adam.
Mangon, Johannes, approximately 1525-1578.
Music--Germany--Aachen.
Music--Germany--History and criticism.
Tzamen, Thomas.