Mississippi blues? Just listening to the diversity here shows a defining image is impossible. But one distinguishing feature of blues made by Mississippi artists is that a greater proportion of their works became iconic in later years. Some survived down the years in the repertoires of younger musicians, more took on greater significance once the Sixties blues boom engaged the imaginations of enthusiasts around the world. Here are the originals remastered, demonstrating why they became such a potent influence on the popular music of the second half of the 20th Century.