A comedy is a form of play that has a happy and playful ending and a tragedy is a play where there is a fall in main characters or events that is disturbing.
While a mystery play is a form of drama based on the biblical events, and the miracle is a type of religious drama that is related to the life of the saints and martyrs of the middle ages.
The morality play is a form of drama that consists of the used popular legends in order to teach some morals through the allegory.
If there were no copyright laws, you would not be able to protect your music after releasing it. People could take parts, or even your entire song and claim it as their own, and you would have no legal bounds or actions against the plagiarism of your work.
