It can reasonably be inferred from the passage that Monique believed the song she chose for her audition:

first of all, dante wanted to write an account of the search for spiritual atonement and salvation, and this desire drew heavily from dante's own experiences. dante was living in exile while writing inferno and so, much like his poetic counterpart, he felt like he had lost his way and needed direction.

explanation:

cockroaches and rats most likely symbolize in the play is :