Music sung by two people at the same time is called a duel. Agnus Dei was a woman composer famous for her church music. Caruso was first an Italian. Then someone heard his voice and said he would go a long way. So he went to America.
Most authorities agree that music of antiquity was written a long time ago.
Probably the most marvelous fugue was the one between the Hatfields and the McCoys. My favorite composer is opus. My very best liked piece is the bronze lullaby.