The behavior of the students ,the schedule, the rules that the students are not follow and what !akes the reputation of the school grows down
To provide possibly past events in the songs or to give information to the people watching or help to pass the time and make it a little fun and not so depressing when times are ruff. Kinda hard to explain it's more so of what your view of the songs and the scenario of which the song starts.
The one about African Americans