I spent an enjoyable 2+ hours yesterday watching the documentary movie Zappa on Hulu yesterday. One of the most successful KickStarter campaigns, this movie raised some $1,200,000 in 30 days by 8,000 donors. It was just released November, 2020.
A reviewer on IMDB said it best:
The movie clearly shows that Zappa was a composer. Much like Salvador Dalí, his commercial efforts were the means to fund his artistic efforts. His archives, which I did not know he kept, are a veritable museum of the life and works of Frank Zappa.Frank Zappa's music polarized people. I never encountered a serious listener who did not either love it or hate it. Casual listeners could be meh but not anyone who invested time to listen. Mr. Zappa was much less than the purported rock star, a label he would not care for and much more one of the greatest composers of the twentieth century. He created and worked for his own enjoyment and if others liked it , great and if they didn't that was ok with him.
He railed against stupidity and the compromise of freedom. While clearly a challenging taskmaster, he never seemed so happy as when conducting the ensemble near the end of his life.