Which of the following choices is the defining characteristic of polyphony? select one: (a) the interrelation of melodic lines played in unison.(b) the presence of many melodic lines of music regardless of their relationship.(c) the independence and equality of concurrent melodic lines.(d) the sequential arrangement of separate melodic lines.

The correct answer is C. The independence and equality of concurrent melodic lines

Explanation:

In music, a melody or tune refers to succession or sequence of musical sounds that form a unit. In the case of the "polyphony" this refers to different melodies or melodic lines that together create a musical composition and because of this, they are both independent as each is a complete melody and has a unique rhythm but also they are related in a relationship of equality as they are combined and play at the same time or concurrently. Considering this, the statement that defines polyphony is "The independence and equality of concurrent melodic lines" because a polyphony refers to different melodic lines that are played concurrently have an equal relationship but still are independent.