I don't know any omg incredible unknown albums but sometimes I think some of the older music gets lost in time. There were some guys that just seem to have music in their souls.
Take Bill Withers for example, born in 1938. That dude could lay down some serious feeling.
Here is a 2 minute clip of Ain't No Sunshine
And of course, Use Me
I completely agree, but Bill Withers is pretty well known wouldn't you say? Few of his songs anyway. There are lots of guys from back then who were brilliant, but that pretty much no one knows about.
Take Paul Pena, he was completely blind by the time he was 20 and he had definitely had music in his soul...never made it big (though one of his songs was a hit for the Steve Miller Band) and got into tuvan throat singing when he was older. Really interesting story. His voice is great:
Willie Wright would be another good example:
Thanks for these Rimbaud, I'm listening right now. I don't listen to such old music often but when I do I realize that some of these guys could make great music if you plopped them down in 2016. The music would be different because of the influences but it would still be good.