Fan Casting Counterpoint Duet in Sort by Tropes

A musical trope employing the use of counterpoint, or overlapping melodies with different rhythms. The typical structure of a Counterpoint Duet goes as follows: one character sings a song, then another character sings to the same chords but a different melody, then both sing together in counterpoint. Most often used to express arguments or show that characters have differing opinions on the same subject, though occasionally merely employed for fun. A Sub-Trope of Let's Duet. Might overlap with Call-and-Response Song, though that does not necessitate contrapuntal singing (the singers may be "calling" or "responding" in turn or with the same melodic lines).