According to Aristotle, poetry is a medium of imitation, where it seeks to present duplicated life through character, emotion, or action. Aristotle broadly defined poetry, so he included epic poetry, drama, tragedy, comedy, and some kind of music. For example, a tragedy is used to show people better than they are, while comedy is used to display lower values. Errors arise when a character or event is misinterpreted, incorrectly "imitated", but according to Aristotle, such mistakes do not sabotage the whole work.
Answers: music, dramatic tragedies, dramatic comedies.