"Annie Laurie" is an old Scottish song based on a poem said to have been written by William Douglas (1682?–1748) of Dumfriesshire, about his romance with Annie Laurie (1682–1764). The words were modified and the tune was added by Alicia Scott in 1834/5. The song is also known as "Maxwelton Braes".
Answer:
hey your pdf can't download
I think the answer is maybe sound of the surf or produced may recorded live
It most likely means they are singing higher than required
They can produce different types of theatre and make things more creative by the many different skill sets they have.