http://ja.wikipedia.org/wiki/%E3%83%9F%E3%83%B3%E3%82%B9%E3%83%88%E3%83%AC%E3%83%AB%E3%83%BB%E3%82%B7%E3%83%A7%E3%83%BC
ミンストレル・ショー

http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Minstrel_PosterBillyVanWare_edit.jpg/1024px-Minstrel_PosterBillyVanWare_edit.jpg
http://az616578.vo.msecnd.net/files/2016/10/30/636133838512282693-1272881416_712big.jpg
http://www.livermoreclasspics.org/schools/public/lhs/54-55/minstrel.jpg
http://i2-prod.mirror.co.uk/incoming/article2077346.ece/ALTERNATES/s1200/The-Black-and-White-Minstrel-Show.png
http://debatesinmediastudies1.files.wordpress.com/2013/03/bandw2.jpg