This is a brief video from Maggie Lange, who is an attorney and Professor of Music Business/Management at Berklee College of Music.
In this video Maggie covers a lot of ground. She talks about the length of copyright, how an artist early in their career might assign their copyright to another entity and how there are provision in the copyright code to reclaim copyright over their work.
I had immediate thoughts of the hundreds of music artist who assigned their copyright early in their careers and lost millions of dollars because they didn't know the full impact of what they were doing.
Maggie then transition into Fair Use and the criticism/parody aspects of Fair Use.