Son House was a blues singer and guitarist who helped influence and popularize the delta blues style, influencing many artists both then and today, including Robert Johnson and Jack White. These tracks show a good picture of his music, with some tracks showcasing his guitar and slide guitar skills, and others that are simply him singing and clapping.
This music is reminiscent of gospel and the songs you might hear sung by chain gangs, not refined or necessarily always on time or key, but always full of feeling and soul. This music isn't everyone's cup of tea, but even if it isn't your style it's worth listening to hear where a lot of more contemporary music got its stuff from.

get part 1 here and part 2 here.