‘Summer of Soul’ Review: In 1969 Harlem, a Music Festival Stuns. Documentary Films and Programs, Black People, Blacks, Music, Summer of Soul (... Or, When the Revolution Could Not Be Televised) (Movie), Thompson, Ahmir (Questlove), Staple Singers, Jackson, Mahalia, Staples, Mavis, Hawkins, Edwin, Harlem (Manhattan, NY)