Church is the perfect venue for this spiritual music from South Africa’s most famous and world-renowned male chorus. Give Paul Simon credit for exposing the group to Western ears, even since Graceland, the 10-man, family-based vocal ensemble has expanded its music through numerous albums and a rugged worldwide tour schedule. Thirty years and as many releases in its prolific career, the exquisite harmonies and subtle choreography have been sharpened for maximum showmanship. South African poet, writer and vocalist Vusi Mahlasela opens.