Answer:
1.The song is actually a round—a musical composition in which 2 or more voices sing exactly the same melody, each voice beginning at a different time. ... It is one of the easiest forms of 'part' singing, as only one line of melody must be learned by all the singers, and it can be repeated over and over.
2. it have four parts
3.Generally speaking, in musical form, the contrasting section is referred to as part B simply because it follows the first section or phrase, which is usually called part A. Binary form in music means that there are distinct A and B sections in a song or work.
4.This melody employs several differences among the four parts of the melody to help make them distinct.
