 Upon his release from prison, Nelson Mandela promoted them as ambassadors of South African music, and later nominated them to represent their country at the opening ceremony of the 1996 Summer Olympics in Atlanta, Georgia.The band's marimbas come from Father David Dargie of St. Francis Church in Cape Town, and were produced in 1979 by Brother Kurt Huwiler who worked in Umtata for the Lumko Institute.They are tuned to both Mpondo and Afro-diatonic scales.