I've noticed that black musicians were talented in the beginning. Their blues, jazz and soul songs were great. Also, some did great modern pop music songs. In XXI century it just ended.
It's scary how modern nigger music has become only crap.
Looks like Jews have decided to make black music become degenerate.
The root of your confusion is the narrative you have been fed. Plenty of Whites played Jazz and Blues. It was not a unique thing. The difference is that blacks were willing to be recorded for free, while Whites played with live bands because it paid more.
This contained into the 50s and 60s because niggers were more likely to sign away the publishing rights and play for pennies.
[This Podcast](https://500songs.com/) is super lib left, but you can read between the lines if you want to know more about it. Story after story of jews screwing over niggers.