A few years ago, when the BBC produced proper programmes, they made Friday night music night on BBC4. None of this TOTP repeats (with no Jimmy Saville) we get now.
They ran a series about American music and its roots. Examined the birth of blues, gospel (the root of it all??), jazz, folk, rock and roll etc.
Sister Rosetta was there. Woody Guthrie. The Weavers. Leadbelly. Sam Phillips. And on and on. Fascinating stuff.
A lot of it came from out and out slavery/racism.
We suddenly realised that a lot of the prejudice these musicians suffered was in our own lifetime.
One notable point was the first Tamla Mowtown tour. The Supremes couldn't bring themselves to go in the front door of the Liverpool Adelphi Hotel because "back home" that would be whites only.
Terrible prejudices but the music that came out of it maybe wouldn't have been seen in a normal society. I just wish they would repeat the programmes.