Comedy
When we talk about comedy, we usually refer to plays that are light in tone, and that typically have happy endings. The intent of a comedic play is to make the audience laugh. In modern theater, there are many different styles of comedy, ranging from realistic stories, where the humor is derived from real-life situations, to outrageous slapstick humor.
Tragedy
Tragedy is one of the oldest forms of drama; however, its meaning has changed since the earliest days of staged plays. In ancient times, a tragedy was often an historical dramas featuring the downfall of a great man. In modern theater, the definition is a bit looser. Tragedy usually involves serious subject matter and the death of one or more main characters. These plays rarely have a happy ending.
Farce
Farce is a sub-category of comedy, characterized by greatly exaggerated characters and situations. Characters tend to be one-dimensional and often follow stereotypical behavior. Farces typically involve mistaken identities, lots of physical comedy and outrageous plot twists.
Melodrama
Melodrama is another type of exaggerated drama. As in farce, the characters tend to be simplified and one-dimensional. The formulaic storyline of the classic melodrama typically involves a villain a heroine, and a hero who must rescue the heroine from the villain.
Musical
In musical theater, the story is told not only through dialogue and acting but through music and dance. Musicals are often comedic, although many do involve serious subject matter. Most involve a large cast and lavish sets and costumes.
Dramatic irony
Dramatic irony is when the words and actions of the characters of a work of literature have a different meaning for the reader than they do for the characters. This is the result of the reader having a greater knowledge than the characters themselves.