At ‘Black Woodstock,’ an All-Star Lineup Delivered Joy and Renewal to 300,000. Blacks, Black People, Pop and Rock Music, Parks and Recreation Department (NYC), Woodstock Music Festivals, Knight, Gladys & The Pips, Sly and the Family Stone, Black Panther Party, Hansberry, Lorraine, King, B B, Lindsay, John V, Wonder, Stevie, Simone, Nina, Harlem (Manhattan, NY)