‘Living legend’ is one of the most overused cliches in music writing. But with Ray Charles, it merits dusting off and recycling. What else can one say about the man who virtually single-handedly invented soul music having taught himself to play the piano after being struck blind by glaucoma? There isn’t space here to do justice to the variety and breadth of his back catalogue, but if we get even a small sniff of it here, we’ll come away happy.