What I am showing

• Show words used for hip hop songs by era

• How diverse vocabulary is? Has it become more diverse or less diverse?

• What vocabulary is popular in each era does the word trend comes and goes?

What I want to say and why?

As a second language user (Korean is my native language), how many vocabulary should I know to understand hip hop songs? Is it getting more difficult compared to early days or the opposite?

I want to know.