Columbia subject headings:
Catedral de Orense--History--Sources.
Catholic Church--Spain--Orense--Liturgy.
Church music--Catholic Church.
Church music--Spain--Orense--History--Sources.
Church musicians--Spain--Orense--Biography.
Musical instruments--Religious aspects--Catholic Church--History--Sources.
Harvard subject headings:
Catedral de Orense--History.
Church music--Spain--Orense.
Princeton subject headings: