Bonnie Greer: The blues, Obama and me

In the following extract from her new book about the music she and the US President grew up with, Bonnie Greer tells of her own childhood in Chicago and of BO DIDDLEY's revolutionary riff:

http://www.independent.co.uk/arts-entertainment/music/features/bonnie-greer-the-blues-obama-and-me-1833703.html

Ms. Greer is an American-born playwright and critic, resident in Britain.

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