While strolling along Postoffice Street during a recent ArtWalk, I heard a smooth, melodic voice drifting down the street. I followed the sound and found Grant Masters standing there singing Sinatra and other jazz standards. What caught me off guard was how young he was. Grant is just 20, but he was handling those timeless tunes with the confidence and style of a singer who had been at it for decades. I stopped. Then I stayed awhile. And I’m glad I did. There was something re