The Chambers Brothers
"Time has Come Today" should be played at some point in the film as it is the perfect song that captures the mood of that time.
The group was a pioneer of styles and not well known beyond that seminal song.
Social issues will be mentioned so I expect a certain amount of discussion to be about that aspect of the film.
Just reintroducing the Chambers Brothers to a new audience I consider a win for the film. π