This is the second Netflix's ReMastered series I've watched. The first was the Johnny Cash story "Tricky Dicky and the Man in Black" which I gave 10/10 to, and I'd give this one 11/10 if I could.
Disclosure: I'm an acquaintance of Rian Malan and Rob Allingham (I'd like to say friend, but we only bump into each other irregularly) and only became aware of this fantastic documentary via finding the above one on Johnny Cash.
I'm also acquainted (not in a friendly way) with some of the executives and other shysters put in the spotlight here. As Rian explains, this is an ambiguous tale with no clear heroes (other than the deceased composer) or villains, so not an easy story in which to pick the goodies or baddies (except if, like me, you've had personal experience with some of these crooks, but even then we're talking generations down the line.)
Long story short, this is a documentary I can't recommend highly enough.