(GREAT BARRINGTON, Mass.) – Four-time Grammy Award-winning South African vocal and dance troupe Ladysmith Black Mambazo – best known for its groundbreaking work with Paul Simon on his landmark “Graceland” album – brings its joyful choral music to the Mahaiwe on Friday, February 6, 2015, at 8pm. In 2015, Ladysmith Black Mambazo – led by…