Summarize at least 3 elements of an ideal tragedy as described by Aristotle

Aristotle lays out six elements of tragedy: plot, character, diction, thought, spectacle, and song. Plot is 'the soul' of tragedy, because action is paramount to the significance of a drama, and all other elements are subsidiary. A plot must have a beginning, middle, and end; it must also be universal in significance, have a determinate structure, and maintain a unity of theme and purpose.