Answer:
There are six different types of voices but there are four main ones the four main ones are: Baritone, Tenor, Mezzo-Soprano, and Soprano and the other two are Bass and Alto.
BTW I didn't get it off the internet this time maybe this will help if not report me
Explanation:
In the amigo brothers, the fact that the brothers are not quite against each other is an example of foreshadowing because it suggests that later on in the story, they won't want to compete against each other.