McCullough has completed substantial work toward a documentary about Black jazz pianist and composer Horace Tapscott ( Horace Tapscott : Musical Griot ) , who stayed in Los Angeles even after attaining a national reputation .
Jazz pianist could continue to help the Watts community where jazz pianist grew up .
McCullough has completed substantial work toward a documentary about Black jazz pianist and composer Horace Tapscott ( Horace Tapscott : Musical Griot ) , who stayed in Los Angeles even after attaining a national reputation so that he could continue to help the Watts community where he grew up .