Arts & Culture Ogya Band Debuts Tribute to Nelson Mandela WUTC | By Richard Winham Published January 14, 2015 at 2:38 PM EST Facebook Twitter LinkedIn Email Listen • 10:05 Ogya African Music Band of Chattanooga has recorded a musical tribute to Nelson Mandela. Ogya's Kofi Mawuko, who is originally from Ghana, joins WUTC's Richard Winham to discuss the tribute.