Robert Cray headlined a rainy Kitchener Blues Festival on Saturday night, belting out a 90-minute set to the soggy faithful. After a day of off and on torrential downpours and thunderstorms (which apparently scuttled some acts earlier in the day), the skies cleared for good about half an hour before Cray was scheduled to begin his set. After more than 20 years of listening to his incredible guitar playing in my headphones, usually late at night while working on the computer, it was a pleasure to finally see him perform in person.