Blues guitarist, singer, and songwriter Sterling Magee and harmonica player Adam Gussow have paid their dues. They began their career on the street -- on the corner of Seventh Avenue and 125th Street, to be exact -- and within a matter of weeks they were drawing crowds, people pausing on their way home from work to stop and listen. For five years, nearly every afternoon that weather permitted, the pair would meet on the corner and Magee would set up his simple stool, drum kit, guitar, and amplifier. Using a combination of foot stomps, tambourines, hi-hat cymbals, and guitar, M...