Music sung by two people at the same time is called a duel. Caruso was at first an Italian. Then someone heard his voice and said he would go a long way. And so he came to America. Morris dancing is a country survival from times when people were happy.
Most authorities agree that music of antiquity was written long ago.
A harp is a nude piano. A tuba is much larger than its name. Instruments come in many sizes, shapes and orchestras. Another name for kettle drums is timpani. But I think I will just stick with the first name and learn it good.