American Experience: Jubilee Singers: Sacrifice and Glory, Part 1, Interview with Horace Clarence Boyer, Musicologist, 1 of 3
directed by Llewellyn Smith, fl. 1987-2017; produced by Llewellyn Smith, fl. 1987-2017, WGBH Boston; interview by Llewellyn Smith, fl. 1987-2017, in American Experience: Jubilee Singers: Sacrifice and Glory, Part 1 (Boston, MA: WGBH Educational Foundation, 2017), 27 mins
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