Most of the writing of Tin Pan Alley

Question $3$ options:

featured main characters that were Kings, Queens, and other epic figures, in an effort to impress the audiences with fantastical stories.

avoided lyrical repetition at all costs. These songs were written to tell long, detailed stories. Instead, they relied on musical repetition for consistency.

followed a fairly structured format or formula, with just enough variation to keep it interesting for experienced listeners.

emphasized using heavy contrast and differences within a song to subvert the expectations of audiences and keep them interested.