Overall, it's the story of how the powers that be try to control music and people throughout history finding ways to work outside puritans, corporations and tech lords' systems despite these social engineers' best efforts.
Don't worry, it's a fun telling of this tale with lots of great music, images and wild stories.
Here's a preview -
https://www.youtube.com/watch?v=pK0JHWGjGAQ&t=2s