If Brandon Moss was exemplified by anything, it would definitely be his guitar. Calling the instrument his âÂÂextra arm,â the 17-year-old Bronx resident wouldnâÂÂt be lonely on a desert island if he had his guitar â and his ex-girlfriend. HeâÂÂs concerned with his neighborhoodâÂÂs gang activity and gives himself credit for being a nice guy among the violence.